ie and safari as well as all the other browsers, use the same plug-in. You will be able to find it in Library > Internet Plug-Ins folder. What I would recommend is deleting any shockwave or flash files from that folder, remember that there are two Library's, the root library, which you can modify as long as you are the admin, and the user library. After you delete those files, go and reinstall it, that should fix it. I am using safari with flash, the latest, and it works fine.