We have updated the plugn and fixed the following issues:
1) Thumbnails do not get created if you use anything else but lower case in the file name. CAPs, spaces, numbers, etc don't work
2) When using google chrome and adding attributes once your cursor hits the first attributes price box your done. Can't tab or even click out of that box.
The plugin is available in the downloads area to club members only.
Cheers!

