I'm afraid I can't, since the server browser filters servers not by gametype but by map prefix. I found this out when the MyU guys decided to play some FHI maps on their normal vehicle invasion.. suffice to say, it wasn't the best of ideas, it completely negates the concept of having a base to defend.
The patch has just been released, however. We'll be releasing FHI2k4 v2 very shortly, with tons more maps, more content and fixed bugs, plus people won't run into the server connecting problem. Hopefully that should kick up some more interest.