Questions regarding upgrade from Netscape communicator 4.5 to nescape 7.02

Hi all

I have a simple question which needs a short intro:
at work we have an imac with OS X running Netscape Communicator 4.5 .
several users have their own profile on that machine. At start up of
the software, we choose our profile and arrive directly to our
bookmarks and mail folders, which is very interesting to separate
email folders.
We would like to upgrade to a newer version of Netscape software. As
there is no upgrade in the french language for Netscape Communicator
for Mac, we will probabily to upgrade to Netscape 7.02 for Mac
However, somebody else has performed the same kind of upgrade from
netscape 4 to netscape 7 on a windows platform, and this resulted in
the loss of all the profiles, and even in the loss of the possibility
to create and use different profiles for different users at start up.
We therefore need to load all the profiles (bookmarks and email
folder) to view our own...

The question is : will we have the same problem when upgrading our
netscape software on the imac platform ? does netscape 7.02 for Mac
still support multiple profiles at start up, or do we have to load all
the email folders of everyone to check its own ?

Thanks for your advices
Christophe