Update option not working

I created a site that has an admin panel. I have each option (delete, add,update) going to a master page and then a detail page. The delete and add go to the correct detail page for the correct item selected. The update master page goes to the frist record in the database or product line. I have recreated this area several times. I am not sure whatelse to do at this point. I ever tried to develop on another computer to see if there was a bug in my program. Any ideas???
Thanks