Thanks for the replies. I also want to know how I can make sure if I have one or the other other than realoem. The picture in the link below is what comes when I choose my MY on realoem, which shows an oil cooler - oil supply connection. I think the bolt in my picture is the E10 bolt labeled as number "4" in the realoem pic in the link:

RealOEM.com - Online BMW Parts Catalog

Also, what exactly make the job "easy" to fix as opposed to a PITA to fix? The physical gasket seems to be the same in both cases (same part number).