There are people running 4 versions of Access on the same machine.

Just be sure to install to different directories, and you're less likely to
have problems if you install in order.

Other resources

How to Install Access 97 and Access 2000 on the Same Computer
http://support.microsoft.com/?id=241141

Support WebCast: Co-existence When Access 97 and Access 2000 Are Installed
on the Same Computer
http://support.microsoft.com/default.aspx?scid=kb;en-us;325157&Product=acc

There is also some information at
www.trigeminal.com
#19 on the articles and musings page

Although these refer to 97 with 2000, the principles are the same.

Hi you two

Same here.  I have Access 2000 and 2003 going
Originally, 2000 was installed in \MS... Office\ and I told 2003 to install in \MS... Office 2003\, and they both seem to be working ok.  There will be an issue* of which ver of Access will start when you try to open an .mdb
See also another thread on this subject
Installing Access 2000 AND Access 2003  (5)
4/6/2004  

   Jeff Anderson    4/6/2004
    Eric Butts [MSFT]    4/6/2004
    Michael    4/6/2004
    Eric Butts [MSFT]    4/6/2004
    Michael    4/8/2004

* See also how to start the correct version of Access in this forum
http://msdn.microsoft.com/newsgroups/default.aspx?dg=microsoft.public.access.set
upconfig&lang=en&cr=U
Re: Have PC Deterime the Correct Version of Access to Open, dated 4/1

Michae