OK.. It is recommended to use SPRecovery to install this ROM. That being said, I used CW as well and had some issues to work out.
If you don't mind starting clean (and doing it the recommended way), rename the UD zip file to "update" (will be a zip file). Then switch over to SPRecovery (I use ROM manager to switch back and forth and when I switch I will select the recovery 3 times. So, in essence I am flashing over to SP from CW once, then flashing from SP to SP twice. Just what I do, not required)
Once over on SPR, boot into recovery. wipe data 3 times (again, just what I do). Then select "allow update.zip" then install update.zip
It should install UD again and bring you back up and running.
As a sidenote, I wipe the cache 3 times as well but we all know what that means we have to do once we get up and running.
NOW.. if you want to just try a quick fix, look at my previous post about fixing permissions.