Can't make themes work on Ipad

Hi.I have an Ipad 1, IOS 3.2.2.

I've installed sbsettings and winterboard.

When installing sbsettings, after the installation, I made a respring and after that the screen went black with the circle in the middle for a long time. I had to push the on/off and home button together in order to turn the Ipad on.
Anyway, after sbsettings I installed winterboard and I downloaded a few themes (for ipad). But non of them work.

Do any one know what could be the problem?

P.S. I know, me english sucks :)

thank you