Found this by chance on a Chinese web site (http://www.pep.com.cn/200308/ca282369.htm) couldnt understand the language but i got the basic understanding of what was written, used this file to install the USB driver for my Gigabyte USB board controller and it works fine.
Here is the ftp download location i originally got it from. ftp://ftp.unika.com.cn/support/motherboard/epox/drive/U2v2_1_2_1.exe
NVidia (nForce2) USB 2.0 Enhanced Host Controller Driver
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