rushi,
If you don’t get the j2ee 1.5 option then the the only way of getting this option is tp upgrade to a newer version of MyEclipse. 5.1.1 GA is a very old version and I would suggest you upgrade to 7.x which is the latest version of MyEclipse.
How set sun server9 to MyEclipse..
Incase you are referring to Sun java System Application Server 9.0, MyEclipse 7.x supports that as well.