A link to what? I'm willing to look at error messages and give you pointers as to where the problem is (since I can do that while I'm at work), but I don't have time to dig through the code of and update addons I don't even use. :|
If you want to try fixing it yourself, download versions of GatherMate from before and after 3.1, and use a compare utility like WinMerge to see what changed. Then look through Tracksw and see if it called any of the functions that changed, and try to change them to match.