Pushed broken jack through back (accident) but front now working..

Mac Pro.....trying to glue the piece to the jack and it got pushed through somewhere..however front is now working.... Is the front audio front the same as the back? would I be better off with imic? what is the difference in quality? also I can use the optical audio to hook up to more advance streo systems? does anyone have any experience with replacing, or fixing a broken jack on a mac pro? sorry to sdtart another post but I felt it warranted it since it is a different situation..thanks