Lol... definitely a win with the 5 speed! Sounds like your Vehicle Speed Sensor has gone caput if you're not getting any speedometer reading. This may also be causing your mileage not to turn over. If that doesn't solve the mileage problem, then some other guy in another forum suggested simply pushing the reset trip button in and letting it flick back, and that seemed to work for quite a few people. Goodluck with your car!

ROFL - three year delayed reaction!

Yeah, I kinda figured that out after I'd posted... three years later, lol. :D