Please let me know which installer you downloaded.
Is the installer you used named:
Quest_Toad-for-DB2-LUW-and-zOS—64-bit-client_51.exe
OR
Quest_Toad-for-IBM-DB2-zOS-Xpert-Trial_51.exe
OR
something different?
Also did you get an email with a License Key?
If so did you add that to Toad via Help | Licensing - Add License?
You can send me that information and key directly to jpodlasek@quest.com if you prefer.
thanks
Jeff