I just logged a first bug on Redhat Bug Track, and when I hit commit, I was just thrown back to the log-in page with no indication as to whether the bug report was accepted or tossed. Please let me know whether it was accepted (bug on ppp, Redhat 5.2). Also, please add a confirmation page after "Commit" that indicates the bug report was filed successfully.
I believe there _IS_ a confirmation page in Bugzilla and the reason you have not seen it is that your report was _NOT_ succesfully submitted. BTW, you also always can go to the query page, type your e-mail into the "Reporter" field and get a list of all the bugs you've submited.
You probably don't have cookies turned on -- bugzilla currently requires them to work. That is the only way that I have been able to get the login page after submitting a bug report. Turn on cookies in your browser and try again.