Accidentally combined contact lists w/ Outlook 2003 and Activesync

Using HTC Fuze phone.

I wanted to back up my phone on my work computer in addition to the one at
home. I did NOT want to sync the emails, just contacts, notes, etc.

I created a new contact list using the drop down from the File menu,
followed the prompts and windows, and saw the new list in the Outlook file
list. I opened up that contact list, which was of course blank.

I then ran Activesync 4.5 for the first time on the work machine. It
correctly identified the work computer as a new computer. I checked the
things I wanted backed up.

However, when I synced, Active sync gave me no choice, and combined all of
my work contacts withe my cell phone contacts, and put all the notes,
calendar, etc., with my work entries.

How do I open up a new folder or whatever in Outlook that I can use to keep
work and my phone data separate? And then what do I do with Activesync to
keep them separate.

The work computer is a standalone, and not on a network. The email address
I use the work Outlook for is not the email address for my phone.