CrossFire Event hack

Hey

now the back to school scavenger hunt event is up I was wondering if it would be possible to complete it without doing anything.

Here are the POST parameters involved:

ctl00%24Main%24ctl00
_EVENTTARGET
_EVENTARGUMENT
_EVENTVALIDATION
_ASYNCPOST
_checkStatus.x
_checkStatus.y

I'm most interested if we could modify the EVENTVALIDATION so it would count as succeeded.

Here are my current parameters:
pastebin slash D1B6vv98 (no link posting = op)

I haven't completed the first challenge yet, i'll come back & post my parameters again if it's done.

Anyone could find out what's actually in _EVENTVALIDATION or post your own parameter? (Easy app would be Tamper data in Firefox)

Or just tell if it would'nt be possible.

Sincerly,
Bert

Btw guys, I'm talking about the event page here
(events_page.aspx)

These params changed after succeeding the challenge:

_checkStatus.x changed from 80 to 91
_checkStatus.y went from 26 to 12

_EVENTVALIDATION stayed the same.

I guess I can't force anything...