It says is bind to my "Alt-B" which I selected but when I do that, nothing happens, and I suppose it should open the cBagsync currency tab

Yep this is a bug. It was not carried over with the rewrite. I took a year off so I was bound to miss a few things. Thanks for pointing it out!

Fixed in latest version.

Yeah the main function of the addon is working excellent, cheers for that, AH items are now working correclty, this is just a minor function i found it wasnt working, thanks anyway!