As you were already told, you need to get the Developer's Edition that's the
same as your current version of Access. Unfortunately, Microsoft no longer
sells previous versions of Developer's Edition.
If you want to stick with Access 2000, one possibility is to check out sites
that specialize in old software products, such as
http://www.emsps.com/oldtools/ or
http://recycledsoftware.com/
Another is to look at someplace like eBay to see whether anyone's trying to
see their old versions (Note, though, that products purchased this way
aren't always legal...)
If you want to move to the latest version of Access, you'll need to purchase
the following in order to create an Access 2003 runtime application:
- Microsoft Access 2003
- Visual Studio Tools for Office 2003 (which includes the Access 2003
Developer Extensions)
The ADE is the product that gives you the license to deploy the 2003 runtime
components and you have to have Access 2003 installed in order to install
the ADE.
If you're using MSDN, note that while VSTO is available in all subscription
levels of MSDN, the Access Developer Extensions are not included with all
versions. ADE is only available at Universal level.
The stand-alone VSTO box includes both VSTO and the ADE.
See
http://msdn.microsoft.com/vstudio/office/officetools.aspx for more
details
You might also check what Tony Toews has at
http://www.granite.ab.ca/access/developereditionfaq.htm for more
information.