Umm, yeah... tow it to a shop. Sounds like your engine is fine, so I'm going to assume your transmissions has failed catastrophically.

Frozen brake calipers because someone never had the brake fluid changed to get the water out.

Take the brake off.

Time for a rebuilt tranny! By now the clutch packs are fried.

transmission gone. find local shop at ATRA.COM to verify

check the emergency brake.

Your transmission is trashed.