[Gtk-sharp-list] installation help.

[JesterDev]

I'm trying to figure everything out, so please bear with me. I have
installed the latest build of GTK+ and I have also install mono. 
When I try to install GTK# I get an error saying that mono package
can't be found in pkg-config search path and that I should add the
directory containing mono.pc to the PKG_CONFIG_PATH environment 
variable. 

There only place I can find mono.pc is in home/user/mono/ and
I have no idea how to add it. I tried pkg-config /home/user/mono
and that didn't seem to work.. Can someone please help me? 

I'm fairly new to Linux, and have never used GTK+/# before.

Thanks
Michael