Im in exactly the same position as you. My tabs were destroyed.

There is some expoxy that is SUPPOSED to work, Here is what is needed

3M Automix, Channel Bonding & Sidelite Adhesive. Part# 08641
3M Automix Applicator Gun. Part# 08191
3M Mixing Nozzles Clear. Part# 08197

I havent tried it as my tabs, like yours, are in pieces. I think you would need new tabs in order to fix it; cracked or broken tabs will probably not work so well.

So what I have done is used JB 4-minute Weld epoxy as a short-term fix. My window is in the locked and upright position, and will not be opened until I get a new window. The JB Weld, through my experimentation, is not a permanent fix. This is the second time I have done this.

I would be happy to just buy new tabs and try my luck with the 3M adhesive, but no one just sells the tabs, and I cant think of any way to fabricate somethign similar.

Ive shopped around, and I have found used windows for $220.00 (that includes shipping and tax), or new ones at my local dealership (with a 7-day shipping time) for $245.00.

Im saving up for the new window, and hopefully along with the other fixes posted on this site, I wont have any problems with the new window.

Yeah, it really really sucks.