Error 50 on login

Error 50 on login

I cannot get past this error. I am trying to connect to a vWorkspace (Quest) broker with a WYSE S10. It says "this version of Vas client does not support secure tickets". Says I should upgrade to 5.1. Unfortunately I cannot find this upgrade anywhere or how to do the upgrade. Instructions do not seem to match my file configuration with Quest. i.e. I have a WYSE folder with sample MNOS.ini and rdp.ini files under the software but all the examples (including the one in the sample folder) do not match my C:\Program Files\etc.\etc. file structure. So I do not know if the upgrade would upload even if I can find it. Furthermore it seems WYSE and Quest don't really support each other very well.

Some help from someone who has done this combination would be appreciated