Hi. Whenever I try to download to my mobile (.sis files), it shows error "installation of .sis not supported."

I changed my App Mgr settings to
Software installation: all
Online cert check: off

I guess that is right?
What else do I need to do to download correctly?

Thanks for your help

Make sure you're trying to get S60 3rd Edition versions of the apps (versions for older releases of S60 won't run on the N73).

Thanks!