restoring applications

So I tried using titanium backup to delete some applications and I deleted System Updates, not knowing that it would prevent me from updating my data profile and now i have no web... is there a way to get the stock system apps to all return? I backed up the application before deleting it, but Titanium backup will not restore it, it just says "restoring..." and never stops. (at least 10 minutes i waited). I have a "moment updater" and a this file: "SPH-M910_MR_DF27_REL_156.tar.md5" that supposedly will put the stock firmware on it, but im worried as i dont want to brick my phone. Can anyone confirm that this works? My phone was rooted with super oneclick "InterceptFroyoRoot v0.2" Any help would be very much appreciated... thank you