The notch at the bottom of the timing cover appears to be a weep hole, so you can tell if the back of the pump is leaking. I don't think it should be filled with JB or sealant. I just seal around the water jackets.
There are two additional bolts underneath going through the oil pan and into the timing cover. You can clearly see them if you refer to the link in Michaels post #117. Keep in mind, taking the timing cover off may snow ball into an oil pan gasket. Not a bad idea if you have access. FelPro makes a really nice one piece gasket.
Know that Ford made a few different timing covers. They can easily get mixed up. Ask me how I know.
Also, I have found that the cheap Chinese timing covers are junk. The last one I ordered the holes were off so far that I could not thread them into the holes on the block. I think Michael pointed you to a good one. Appears to be OEM with Ford stamping.
My 2 cents worth...
There are two additional bolts underneath going through the oil pan and into the timing cover. You can clearly see them if you refer to the link in Michaels post #117. Keep in mind, taking the timing cover off may snow ball into an oil pan gasket. Not a bad idea if you have access. FelPro makes a really nice one piece gasket.
Know that Ford made a few different timing covers. They can easily get mixed up. Ask me how I know.

My 2 cents worth...