Hi,
I installed a theme on my mac called Liscio, now all the names of my files are hidden and all the images are messed up. I still have use of my computer so is there a place I can go to delete the install or restore my system files, It came with an uninstaller but that did not work.
Thanks.

Did you configure the Time Machine when you got your Mac? If you did than you can select any date to roll back the changes to.
If you didn't back up, then you may have to use the restore CD/DVD that came with your Mac.