We used Access 2...or was it 3 years ago...I don't remember but neways it works fine, but the issue with us is that we weren't able to make any ability for synchronization so it ended up being one person taking information off of a piece of paper and putting it into the Access database one at a time....ugh how tedious. Once we figured out to put things on handhelds and make many people able to gather information at the same time we were in business.
So I guess my point is if you can't get multiple people putting information into the database at the same time get ready for some LONG nights at the nationals. Regionals weren't too bad because there are normally only 40 or so teams there, but wow were the nationals hard to deal with.