Nonprofit Access?

I represent a nonprofit gaming recreations program called GameHearts (GameHearts.org for more info). We have been searching for an database import program that can list redemption cards for our participants and today I began working with your site. Unfortunately, I encountered a couple of limitations - First, the "free" package is limited to 1000 entries and, Second, apparently we cannot share our data entry with our participants without their logging into our account. Are these issues something that can be modified to work with our nonprofit, or do we need to search elsewhere...? I would appreciate it if you could work with us, but if not, would appreciate your letting us know... You can contact me directly through ron_glick@gamehearts.org. Thank you for your time.