I have recently relocated to the US from the UK & have bought a car as
this is cheaper than renting one... I will do my US Driving test but
this has been delayed due to wrong information on my I95 entry card
which has had to be sent off for correction. I need to get insurance
for the car I bought without a US driver's licence using a UK driving
licence held for 18 years (this would be short term maybe 2 months
maximum)
I did some research & found another question on Google regarding this sort of issue
http://answers.google.com/answers/threadview?id=589072
the problem I am having is that I am in New York & it seems to be a
totally different set of driving rules between NY & Georgia. I called
the GMAC insurance agents in the area I live & they all said they
couldn't do it.
Any answers or names of insurance agents that can do this would be
greatly appreciated

Although there is no guarantee, you might follow the link (fast, free
quote) on this page:

http://www.carinsurance.com/kb/content10259.aspx

There is also a phone number to call 1-800-580-7750

I don't know if it will help, but you might ask your (previous) UK
auto insurance company if it has a correspondent relationship with a
US insurer so that a possible discount on premiums based on your
driving record can be transferred.