Well I was sure before that a SB4100 should be able to do 10mbit anyhow as it has a 10/100 port and the specs rate it upto 38mbit anyhow. So i rebooted modem and def have the new Firmware on the modem but the speeds are the same as they were before. The router I have def has 10/100mbit so thats not it, i am guessing either they have not "tweaked" my end yet or everyone in my area is downloading something to test the new speeds out.
Ill leave it a day or so - see what happens