need flash web form help

Im using Flash CS3. this can be in as 2 or 3 whichever is easiest.

I am trying to take a standard webform and make it into a flash web form and for some reason I cant figure out what the action script should be or where it should go (ie in a particular frame or the submit button)

My requirements are:
- the method be POST
- action has to be "http://domain.net/servlet/UserSignUp?f=525639&postMethod=HTML&m=0&j=MAS2"
- my script source has to be "http://domain.net/ui/library/formValidate.js"


can anyone here help me come up with the actionscript that I should use for this? I also need to know how/what to associate the as with....like the button or just a frame or what. This is a very basic form that submits an email address, first name and last name to a email list.


Thanks!!!!

so far I have come up with this:

Code:

---

on (click) {
        getURL("http://domain.net/servlet/UserSignUp?f=525639&postMethod=HTML&m=0&j=MAS2", "", "POST");
}

---

When I try this though i get a msg back from my server that there was not an email address present....like it didnt pass the info. A coworker has a script that I used to test to see what variables were actually being passed and this is what that showed:
Name Value
tfList [object Object]
invalidateFlag false
__labelPlacement right
__toggle false
enabled true
_minHeight 0
_minWidth 0
__width 100
__height 22
stylecache [object Object]
useHandCursor false
rolloverIcon falseUpIcon
childrenCreated true
__f_click [type Function]
initializing false
upSkin _level0.submit.fus
skinName _level0.submit.frs
phase rollover
rolloverSkin _level0.submit.frs
downSkin _level0.submit.fds
keyHandler [object Object]


Also for some reason all of my fields are pre-filled in with:
"_level0.email"
"_level0.fname"
"_level0.lname"

email fname and lname are my VAR values and they are showing in the correct fields but i specifically have nothing set to pre-fill those text input areas. Why is it so hard to find a tutorial for something like this??