Weblogic Migration from 7 to 10.3

I am trying to migrate the j2ee applicaiton from weblogic 7 to weblogic 10.3.

if anyone can suggest me which jars are needed and steps to do it....
Any help would be really appricialble.

Thanks in advance...

Weblogic 7 to 10 is a big leap. (People normally do it in steps, from 7 to 8 and then to 9 )It depends on what type of project you have.
Do you have portals (weblogic portal) ?

Following is the link which you may follow to stat with.

http://download.oracle.com/docs/cd/E12840_01/wlw/docs103/guide/upgrading/conChangesDuringUpgrade.html

Take a look at the DDConverter program. You will have to change your XML files and recompile against the new JARs.

Weblogic 7 to 10 is a big leap

It sure is. Once, I had to do a 6 -> 10 and 5 -> 10 upgrade. Painful but it was nice to learn