CR,
After 11-12 years, those plastic tabs are gonna be brittle. I would highly recommend using SBC's upgrade. I have a spare one at home. Want me to check on shipping cost?
As far as adhesive: if you are reapplying the plastic tabs, I'd use PC-7 (I can't buy it local anymore so I need to see if it can be ordered on line) ... if you are installing the SBC brackets, I'd use black RTV since it's strong, adheres to glass & metal but can be reworked if necessary.
Tom