Migrating from WAS 3.5.6 to Sun Java Application Server

Hi,We are migrating our application from Websphere 3.5.6 to Sun Java Application server 8.1Can anyone let me know what kind of strategies can be employed? What are the known difficulties or expected problems to do the same?Your response is highly appreciated. Thankyou
[296 byte] By [lemmeknow] at [2007-11-14]