STUMPED! In Asterix At The Olympic Games :(

[HarleysBaby]

Hi ... I was wondering if ANYONE could help me out. For starters Im a true rookie to xbox and Asterix Goes To The Olympic Games.
I am stuck in doctormabus area.
After I Throw the gold and blue Romans through the target, I go to where Dogmatix is Barking and put Obilex on the platform to turn on the lights in the other room where Dogmatix wants me to be I guess.
I can only go so far due to the end lights after the flaming saws are NOT lit.. Then I end up back to Obilex or I die.
Can someone help me out please? Ive been stumped for days now

Thanks