Converting From X86 Solaris 2.5.1 to Solaris 7

I'm trying to gather information from others that have converted from x86
Solaris 2.5.1 to Solaris 7.
Did you have to do an initial install or were you able to do an os upgrade?
How long did the process take? Was it a smooth transition?

Any information is appreciated.

Thanks,

John

[301 byte] By [CodeProf.com] at [2007-12-25 0:24:00]