For those of us who have upgraded to 4.0.2, the OTA download link has been fixed by PDAapps. The cause of the issue was something that has been changed with the new OS revision, causing the MIDlet-Version line in the JAD files to be numeric in nature, only (could contain periods, as well). In previous OS versions, they could be alphanumeric. The version was listed as 2.48b in the JAD file, thus it received an invalid manifest or application descriptor error when trying to access the file in a browser.
Just thought I'd share for those who had issues previously.