Hi, I thought I might want to add a script or something to the store soon.
I was working on that today actually, but got blocked because;

after filling everything else out, it said I had not uploaded the thumbnail.
Well I tried several times and several different sizes. Anyone know where
to find the upload requirements page? I see that alluded to in some forums,
but haven't found that page! Thanks.

Hi,

You must follow the documentation rules for thumbnail Image or Large Images, to successfully upload your assets to TGC Store.

Firstly, you should login in the TGC Store. After that, in Account Page, look for "You are a store seller, you can manage your store items online here" link.

In dashboard page, click on "Documentation" item on the left column to go to a Seller Documentation page. In the " Upload Help Section", click on "Uploading new product" item.

The "Uploading new product" page will show up. Now, scroll down the page, looking for "Thumbnail Image" and "Large Images" paragraphs directions.

That's it!

I hope may help you. Good luck!.

-Northern