Sorry to hear about your setback. The 92 is a little different from the 95. Maybe someone else can shed light on the subject. In the mean time make sure you take a look at this excellent thread by Danthurs. http://www.gmforum.com/t278911/
Also, the paperback Chiltons manual # 28200 has instructions that are pretty straightforward and covers the 1986-1999 Bonneville. Also, Autozone has online repair manuals. Just go to the website, create a login ID and read the instructions. I had to remove the alternator but not the bracket however I see where you do have to remove the bracket and heater pipes. Why were you not able to remove those? Were the bolts too tight? If so try PB Blaster, let it sit a few days. Was it too difficult to get to? Wrong tools? What?