could you please clarify your versions? Is it Sharepoint Team Services and/
or FP 2002 ( with server extensions )? Is it WSS 3 with MOSS 2007 you are
upgrading from STS to WSS 2.0 is not straight forward in itself. Here is an
article on what to consider.
If the supported upgrade path would include an upgrade to WSS 3 based on
your scenario, is something I cannot tell and I haven't tried it out myself.
Articles on how-to upgrade
from WSS 2 to WSS 3 are to be had a-plenty on the web