You've not posted any information that would permit anyone to tell what you
are doing wrong.
You are simply confirming yet again why importing and exporting are such a
poor choice for transferring Outlook data.
Just copy the Outlook data file they are in and open it in the other
installation.

If the purpose of the exercise is simply to move your Outlook contacts from
one machine to another - then just copy the PST file where the Outlook exist
and open this PST file on the other machine (if source machine is O'2K3 and
destination machine is < O'2K3 - then you should first create a new PST file
on the source machine in O'2K-O'XP format and copy your contacts into that
PST file and move this newly created PST file to the target machine).

In this scenario - using Export to accomplish your goal is not the best
approach (either via Outlook or anyone else's export product - ours
included).

Karl

PS - If you move the file via CD/DVD - make sure to reset "Read Only"
attribute after copying to your target machine and before opening the PST
file in Outlook.