Here's a weird one guys...I need some help

I have a 99 4Runner with just under 70,000 miles. Auto tranny. I was running a short errand today and noticed the tranny was not downshifting to first well. Starting from a stop, the tranny would slip and then grab low gear suddenly. I was going on a 2 mile drive to Home Depot, so I made a note to check the fluid when I got home.

Came out of the store to find a large and growing pool of what I thought was tranny fluid (dark red, clear) under the truck. #@%^@%&! Took a peak under the car and the the left wheel well was covered with the stuff. I was with my 2-year old and it was freezing, so I figured I would idle the car while I figured out what to do. Started fine, runs fine. BUT...now I have strawberry milkshake (not the dark red tranny fluid like before) pouring down from around the radiator hose and out of the radiator overflow. Milky red. "That's funny," I thought. Never seen coolant like that before...

By now, I have created a superfund site in the HomeDepot parking lot and I have decided not to move the car at all. (I was figuring a gasket was cheaper than a tranny.) So I decide to check the tranny fluid. Barely anything in there except...you guessed it, strawberry milkshake. :-o

Well obviously something is not right at all. I'm going to get the thing towed tomorrow and am prepared for the worst, but WTF?? Even with the most catastrophic failure, how would tranny fluid mix with coolant? Any other ideas? Exactly how hosed am I?

Engine oil looked fine and uncontaminated and car still runs fine, so hopefully block and cylinder walls are intact. Ugh.

Thanks guys.

cgardnerma