Instructions from Microsoft:
"To celebrate Messenger's 10th Birthday we are giving you the chance to WIN a £10 Play.com voucher every 10 minutes for 10 days.
Play 'Messenger Mayhem!' with your friends for a chance to win. Competition starts on the 22nd July, but play the demo game now and start practising."
There is more but it's just about getting free Windows Messenger Winks and stuff. Nothing to do with this competition
To qualify you must have a Hotmail account, if not you can just make one for free. If you have one just go to this website STARTING TOMOROW NOT TODAY and play this game with a friend who also has hotmail:
The only other details are that the competition runs From July 22nd 2009, between 10am and 10pm, win £10 Play.com vouchers every 10 minutes for 10 days.
It's a great oportunity to win these vouchers. Microsoft do give good competitions. It's worth a punt and it's free to enter, plus you have fun!