Your question could have a bit more information and
"i have got an esay to do my Monday" adds little value - ah I've twigged it - You have an essay to do by Monday.
No cheating mind - when the person marking it sees perfect spelling, punctuation and good clear English they will probably smell a rat - if you do cheat then put in a few errors to make it look more like your own work...
If you have a wireless router as I suspect then cycle the power - off and then on...
Navigate via control panel to Network Connections.
You should see a Wireless Icon - if you don't see one then you need to install the driver for your wireless device.
If you do see a wireless icon then Right Click on it and select
View Available Wireless Networks -
you may see several networks - I see five on my machine - connect to your own wireless router - usually the strongest signal.
If none of this works for you contact your ISP.
Good luck...
Peccavi
January 2010