I found this post on Digitalspy, tried what the poster suggested and now i have got 9.7meg via my router!!!
"I had the same speed problem with wireless connection but had no problem from connecting direct to my cable modem (blueyonder). The problem was Windows settings that needed altering.
I was getting 4-6meg when connecting by wireless although managed to get the 10meg speed connecting direct (ethernet cable) to the cable modem. I found out that it was the settings on my PC that were restricting the speed and not the cable modem. I needed to change my RWIN settings to 64240 to resolve the issue. I then got 10meg speeds (tested by downloading games files from blueyonder site).
Download DrTCP -
http://www.dslreports.com/drtcp
Set TCP Receive Window (RWIN) to 64240
Select your network adapter (wireless adapter in my case)
Set MTU to 1500 and leave other settings.
Hit Save, Exit and Reboot your computer."
Anyone in the same boat as me give it a go I couldn`t believe my eyes!
Thanks to everyone who made suggestions on this thread they were really appreciated