can anyone tell me the probability for winning this game?

[squall_zell]

hi everyone,

i registered on a site with a curious game, but i want to know the odds for winning it, i search google for answer me and then i found this forum via big-board.com... like this section is called probability... i would like to know if there are anyone who can answer me...

here's the thing,
a friend of mine told me about this comapany and the prizes they offer so we registered, the game is same sort of lottery but instead the common 49 numbers there are only 35, and instead 5 balls awarded there are 7, but to be the winner you just have to get 5 right... confusing?
please, if someone know how to do it in a calculator, tell me what's the chances for someone win the 5th, 4th, 3rd, 2nd and 1st prize?

i'm very thankful