[Xplorer4x4]

Are you trying to restore apps using Titanium Backup? If so it some times requires you to download an app and this will fix all the market links for any apps you legitimacy downloaded from the market. If not could you provide more detail?

 

[Xplorer4x4]

I have found the new market to be a bit buggy so far. If you refund an app and attempt to purchase it later, the market crashes. I also installed a blacked out gmail, only to find that on the first try, the my apps screen of the market was reporting it needed updated. However when going in to the details page, it had no update option avaliable. A remove/reinstall/reboot fixed that.