ok , so from what you just Said,
I don't Think you Use Web based mail. you might be able to tho.
You use outlook in the Office , dose this still work?
You use The Netscape Mail Client at home.
When you Try to Check you Mail from Netscape what happens?
does it not open?
or does it open and show you your old mail but no new mail?
or dose it open and its empty?
You may try going on to the fuse.net webpage and look for a check mail area, (their is one i just looked) this should work for now.
They might still have your mail if outlook and Netscape don't Delete on Retrieval
The info you need to Set it all up again is
the Pop3 Server
the SMTP Server
Your Username
And Your Password
And any port settings that might be nonstandard