If I have Catapult Turtle on the field, play Magical Scientist, pay 1000 for TER, suck up the monster, can I tribute the monster using CT's effect, thus inflicting damage to my opponent's LP?

Thanks..I beleive I can...!!

You would be tributing TER to deal damage, and not the monster "sucked" up by TER.

The Text of Captapult Turtle makes no Refrence to Orginal attack or printed attack so I would think it would be the current attack of TER.

Right, so if I sucked up Jinzo, I could launch TER for 1200 to my opponent's LP, right?

Correct You May Here Is The Fixed And Shorted Text.

That would be correct. Catapult turtle does not care what the orginal atk is, only what the current atk of a monster is.