problem ICC profile in Camera Raw

Hi

I use Camera Raw (Adobe Suite CS4) to adjust the colors of my pictures, I don't use Photoshop as I find it overly complicated for what I do. The problem I have is that I downloaded the ICC profile of a printer to have a better control on the colors that will be printed, but I can't get Camera Raw to use it... At the bottom of the Camera Raw window, there is a ICC profile link but it let you choose among only 4 profiles (sRGB, Adobe RGB, ColorMatch, ProPhoto).
Even worse, if I open the image in Photoshop, convert to the profile I want to use (Edit>Convert to Profile), when I re-open the same image in Camera Raw later on, it deletes the profile and comes back to the sRGB. Does anyone know how I can use another ICC profile in Camera Raw than the 4 installed?

Thanks a lot