File and data location in Outlook?

[PappaBravo]

I travel a lot. I have a desktop PC in Denmark and one in my office in
Scotland, and I use a laptop when travelling.
I hae a small USB harddisk on which I am keeping the outlook.pst file, and I
have set up all three Outlooks to look for it there. That is no problem. But
my account information, rules etc. I have to set on each computer as that
information is not stored in the outlook.pst file.
Is there any way I can keep all outlook related information on my portable
disk? Where is the account data and rules etc. kept? And is it possible to
tell Outlook to look for them on the portable disk?

I am running Office 2007 on XP pro SP2.

Rgds
PappaBravo