>>Our site has been trying to get into DMOZ since the summer of 2002.<<
I have had a large number of sites accepted by DMOZ in that period. So if your site has not been accepted, you need to consider the possible reasons. Dmoz are not quick, but not usually that slow
1. It may just be stuck in a big queue of spam sites for a popular shopping (or similar) category. Or (less likely) languishing in a section of the directory that few specialist editors venture into, eg serbo-croat widget.
2. It has been zapped accidentally and is no longer in the queue (does happen, but not that often) Or it could be that you did not get a clean submission - submitting can be problematical at DMOZ!
3. It has been zapped because the editor did not feel your site was suitable for inclusion in DMOZ(big topic this, as to why)
4. Someone has looked at it and decided it was not the right category for inclusion, and has moved it to another queue, where another editor will (eventally) assess it for inclusion there. If that editor does not think that that cat is suitable, it is sent to yet another queue for suitability assessment (for those of you in the UK, its a bit like trying to get NHS treatment)