you can add a movieclip to the main timeline that contains some code to close the swf if the user's system clock shows a date of 5/4/09 or later. there may be a problem with some users whose system clock is set for next year, but that shouldn't be too common. using server-side code is much more reliable but that's probably not a good option in this situation.
anyway, when the date is past 5/4/09 or whatever date you pick use:
to close down the swf. when you get paid, delete that movieclip.
i'm not very familiar with actionscript. the script for the site was already wrote when he purchased it, all i had to do was change the content. that actually sounds like it would work though. besides, how many people are gonna change their system clock just to see if they can load website content. i would've never thought about it. i guess it's time for me to start googling.
thanks for the help.
there's nothing to google. check the flash help files for info and code samples on using the date class.