is it possible to map mouse 3,4,5 to work?

[gzngahr]

I have a logitech MX518 gaming mouse, it has 2 thumb buttons and clicky wheel button.

I cannot for the life of me get them to work with P1999 client. I've tried assigning them as "generic button" in Setpoint, I've tried setting them to keystrokes too and they still don't work.

My intarwebs searches are coming up null too.

Anyone know how to get these buttons to work?