I installed a new lock screen theme for winterboard from Cydia, opened winterboard, unchecked a few that might conflict, checked the new one, pressed home and the screen went blank as usual.

a few mins later it still had not booted, it goes to the apple logo and to a black screen with some backlights visible. it also will show the apple logo with the little spinning load circle below it.

I really don't wan't to restore, is there any way around that?
will pictures be lost upon restoring? or are they in a different partition?

thanks.