Client OS: Windows XP / 2000 / Windows 7
JDeveloper version: JDeveloper 9i / 10g
First get the OA Framework version in your Oracle apps environment using below URL,
replace "your_apps_url" with your APPS URL, PORT_NUMBER with your APPS port number
This will give you info about your OA framework version with some other details about your environment.
Then go to following Oracle metalink note ID:787209.1
This would give you the right patch number to download.
Follow the video to install JDeveloper 9i. This would also work for JDeveloper 10g.