need help with leaky trans pan

This one's been idle for awhile but I'm bringing it back up. I'm having the same problem. However, I have yet to get a chance to check all of the afore mentioned common leak areas. I'll get to that soon but wanted to bring up another possibility... a buddy of mine told me he's seen the same problem from a bad seal behind the torque converter that allows the torque converter to leak back into the pan making the fluid level in the pan too high.

Has anyone else seen this? Exactly what seal would this be?

Has the OP fixed the problem?