Hello Chris
Welcome to the forum.
Difficult to advise on so little evidence. A screen shot of your problem might help.
Have you loaded the correct "shoe" base on to your Toon2 character first ?
There are 2 shoe choices for Chubby and 3 for Stretchy.
You then need to select the appropriate .imtl file from your Materials/ToonMaker2/shoes/ folder.
The material file you select needs to match the "shoe" base you applied first.
Seems to be working in IC6.5 for me at present.
Hope this helps.
Geoff.