Seamonkey 2.03 to 2.5 lost plugins

[Jim Byrnes]

Just manually installed Seamonkey 2.5 after having used the repository 
version Seamonkey 2.03.  Everything seemed to go well.  All my previous 
bookmarks showed up as well as my email and newsgroup folders and 
subscriptions.  A couple of extensions were listed as not compatible and 
were disabled. The problem is that none of the plugins installed under 
version 2.03 are shown as installed under 2.5. The plugin page is 
completely empty.

How can I best get them to install in 2.5?

Thanks,  Jim