I hope you fixed it as I know how much of a pain that can be. For future reference yes you can restore it thru dropbox. As long as you have the files backed up some place you are fine. What you just need to do is reinstall a fresh Titanium install. Next make sure that the file names in the backup match the names of the install (easiest using Root Explorer I find, Astro or File Manager just as good tho). Download or import the files off dropbox onto a comp or even straight to phone, modify names and what not.Then its just cut and paste and refresh and bam, you have a working TiBu backup on your phone again. I actually never keep any backups on my phone for this reason, waste of space save for one nandroid. Rest of the sd gets taken up by backtrack and ubuntu and all that other crap .....