Finally 10.1.3.3 folks get to catch up with those of you with EBS 11i and R12 - makes a change I know. Im talking about converting your Oracle Reports to the publisher format.
The conversion libraries are pretty good, we have a team internally converting all of the EBS Oracle Reports and they have been very successful converting reports. There are of course corner cases, Reports lets you do the same thing in so many ways and the libraries need to cover them.
Now, rather than regurgitate the documentation heres a link - http://download.oracle.com/docs/cd/E10383_01/doc/bip.1013/e10416/convertrpts.htm#BABGJHAB