Hate to see a Wizard go without his favorite skins. If you bought a Gloss pack, go to MyProducts, look for "Premium Theme Gloss Theme Pack ..." Points to a zip file. Download and pull out .suite file. If Theme Manager won't apply it, rename .suite file to .zip, open with zip utility, manually copy pieces over to appropriate directories. Should work for you.
Premium themes for some other MyColors themes might be out there too. Don't see such downloads for Encounter, Think Green, Diamond. I think the unencrypted Diamond actually came across with a WB update a few back. Don't know where your unencrypted Think Green came from, I'm jealous
Hope I didn't accidentally overwrite it at some point.
I don't expect that there will ever be any unencrypted versions of the logo branded themes for obvious reasons. MyColors remains installed here, I like my friggin' Harley.