Well, the tremulous.x86.exe file can be found in the build/*/ directory and the VMs can be found in vm/*/base/vm/.
You put the tremulous.x86.exe file in your Tremulous folder and execute it to play and/or put the VMs in %appdata%/Tremulous/base/vm to put your compiled gameplay changes into effect. I assume that you're running windows. I hope this helps
