Problem (like someone has mentioned) is that the Bee-Rs are built for GTRs only so there is no way the 17x9 (+25) will fit under the front guards of a GTS-t.
However, the Bee-R copies come in smaller rim sizes (17") with GTS friendly offset.
That's the main reason people go for the copies.
Anyway here's a Aussie seller where you can get the copies (D-Spec brand):
http://www.bt-revolution.com/D-SPEC%20Page.htm
As you can see they come in 17x8.0" +30 which suit GTSs (and 200SXs etc)
However if you think the D-Spec brand is not good quality, you can also get Bee-R copies made by the trusted JDM brand URAS:
http://www.bt-revolution.com/URAS%20Wheels.htm
Funnily enough they are the same price as D-Spec!