Sorry to say this, but the latest version is 1.00.037, but it probably won't help you as there is a known issue with BootSkin Pro and non US versions of Vista. You may be able to get it to work by setting the default language to US english on your vista ultimate though. I can't try it as I have home premium.
So will this issue be fixed? There is a world outside of the us that buy stardock products too. Setting my language to us just for one app is a big no from my point of view, it should work out of the box, not a fudge to get it to work. This was suppused to be fixed for all English versions ...
Bootskin Pro update.
There is a new version of Bootskin Pro that fixes the problem on English clients. (1.00.035) We had two issues that were confusing the issue, one was an international issue. We are still working on the non-English issue and hope to have resolution shortly.
Also, Bootskin Pro was not showing up for Object Desktop (non-Utlimate) users. It should be showing up shortly.