I spoke to the developers about this and they see no limitations with developing in the professional or the standard additions. FYI- Arena does not use crystal reports, Microsoft Reporting Services is used for reporting in Arena. I hope that this helps.
Thanks.
Kyle Barker, Client Services Rep
Arena, a division of Shelby Systems, Inc.
7345 Goodlett Farms Parkway
Cordova, TN 38016
Phone: 1.888.77.ARENA (888.772.7362)
Fax: 901.260.7019
www.arenachms.com