After much reconfiguring of all the different browser settings to find different combinations, I am finally able to click on things in OWA via the web browser. I had to go Options -> General Properties -> and uncheck "Enable cursor in column view"
If I do this and then login into OWA, I have to fidget with the trackball a little until I start to see the links like Inbox, Sent, etc. highlighted. Be careful because it is easy to lose track of where the cursor is since you no longer have the arrow cursor. For example, if your cursor is over the X for delete, there is a dotted line box around the X, it doesn't highlight so it is hard to see.
Until I can get BIS to work, this is the solution for me.
kathrynhr, How do you get the Opera Mini browser?
Bolt is good too, I downloaded it so that I can access my University's Blackboard account.