It always comes down to material settings (whether in Blender or CC). Black usually means you have a black diffuse color which effectively overrides the texture.
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And for the future - Black Ambient (below diffuse) color would effectively stop Glow map from emitting the light (if you ever need it).

Sorry my mistake... still learning! haha

So I answered question 2 again - I must've done something with the eyelashes, but the opacity caused me not to see it haha

I fixed the eyelashes and exported the object file again and got this (much better haha):
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So now it's only the one question:
1.)What should I do to get the fbx accessory to have textures (specifically the highlights in this case)? :)

Actually I answered question #2 - there was an option in the viewport that allowed you to see textures (the small globe in the upper right corner).

But now my new question # 2 is why does the character base model that I exported look like he has huge eyelashes?

On the right is the character base model I exported as an object and on the left is what the character object looks like when imported into blender:
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So to update my questions:

1.) (Remains the same) - 1.) What should I do to get the fbx accessory to have textures (specifically the highlights in this case)?
2.) (New): Why does the base character model object have huge eyebrows when I import him into blender?

Thanks again, guys!

Thanks, Rampa! You were right - it was incredibly tiny which is why it looked like it wasn't there! haha
When I scaled it up it finally appeared:
76% of original size (was 665x19) - Click to enlarge

I do have a few more questions:

When I tried importing the fbx (as I wouldn't need to scale it) I noticed the highlights weren't there:

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I checked the texture file and it was there:
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I even tried changing the texture to something completely wrong just to see if it would do anything, but it didn't affect the hair at all:
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Is there something specific that's needed to be done when importing accessories as fbx files?

Also - when I import the obj base mode into blender I see that it creates the object file, the mtl file, and a folder with all the textures - but when I import it into blender it doesn't load any of the textures:
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I do have the mtl file, obj file, objkey file, all in the same folder as the texture file folder that was created so I'm not sure what I'm doing wrong there:
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So in summary, my two questions are:
1.) What should I do to get the fbx accessory to have textures (specifically the highlights in this case)?
2.) How do I get the obj file, when imported into blender, to show the textures from the mtl and texture folder that is created when I export the base model from Character Creator?

Once again - thank you for all your help guys!

Blender OBJs are usually 1000 times to small. Try scaling it up! ;)

You can change the export scale in Blender if you would like it to come in bigger initially. FBX will be properly scaled, unless you change it.

Thanks for clearing that up!

Here's the tutorial Rampa put up in earlier in this thread that I was referring to: [YouTube]https://www.youtube.com/watch?time_continue=795&v=nsE5qJP2xAI&feature=emb_logo[/YouTube]

I tried importing using the accessories as you stated, but nothing seems to appear even though it appears in the scene as an accessory:
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I even had the hair attached to the base head (thinking maybe it didn't show because it was attached to the pelvis - as the online manual also mentions):
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I'm not sure if it's an issue with how I'm importing it or how I exported it from blender!

Here's the exported hair from blender (obj and mtl file): https://drive.google.com/file/d/18IXHqrX3Na0FqDiQZS6ht1T_a9KZCW4c/view?usp=sharing 

Is there something I'm doing incorrectly?

I have not seen mentioned tutorial, but I believe you misunderstood.
"Create Cloth Hair Acc (with FBX key)" is restricted to bringing FBX character (previously exported out of CC) with cloth, hair or accessory added to it in some 3rd party program.
You cannot bring an item alone (even in FBX format) with this option.
"Accessory" is the only way to bring anything into CC alone and then optionally convert it to Cloth/Hair or have it retain an accessory status (that is the option I used for the hair).

I was trying to import the hair, but ran into some issues:

In the tutorial Rampa put up - the way to import objects is by selecting Create->Cloth,hair,accessories and then selecting the .obj file.

When I tried to do that it wouldn't show any of the object files and would only allow fbx files:
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When I try Create->Accessory it allows obj file types:
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But when I add it the hair doesn't appear and under the avatar it appears as glasses?

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How did you import the hair? And why doesn't the Clothes, hair, and accessories not allow obj files?

Thanks again for the support! :)

Yes, the object comes with base maps and .mtl file. The rest is just up to the designer to customize those maps.
Just export any character from CC toNude OBJ and inspect the exported structure.

Thanks for all the answers and that link to the tutorials!

When I send the object to my designer - would he be able to change the skin texture as well to make it more cartoony?

If not - what would the best way to allow him to fix the texture for the mesh so they'll have that stylized look?