Well, that's good news! (sorry about the swallowing pride part, but we all have to do it sometime...) I will indeed keep some finger's crossed.
One thing I find with recharging my DE filter is that I always go at it slowly. I don't backwash as I really only need to tear down the filter twice a year to keep it happy. So when I put it all back together it requires 10lbs of DE to fully charge it. I typically add two scoops (2 lbs) of DE to a 5 gallon bucket of water, mix the slurry with my hands and then very, very, very slowly pour the slurry mixture into the skimmer with the pump running at full speed. I repeat that process five times and it takes a good 15 to 20 mins for me to recharge the filter. I then leave the pump running for 24 hours to ensure that the quad grids are fully coated and the DE is sticking to them. One thing I was warned about early on with DE filters is to never dump powdered DE straight into the skimmer or else you risk a clog somewhere in the suction line. In your case, the clog happened in the impeller. And, it doesn't take much to clog up an impeller and completely kill the pumps ability to move water. I once had an impeller partially clogged with a few mesquite needles (they are very tough and fibrous and don't break down from chlorine exposure).
Let us know how it goes and I hope your green pool clears quickly. If you are experiencing algae and need to SLAM the pool, just be advised that the DE filter will load up quickly with dead algae so you may be backwashing quite a bit.