I know tremulous does not really like amd64, but I can't help it, I got this architecture, and I have to use it

However, I downloaded tremfusion (64bit-version), I now use it as my default client, works well. I now have realized that there is a tremfusion-bot-mod available, and I tried to activate it (Linux/Debian):
/usr/games/tremfusionded +fs_game tremfusion-bots
Starts up, no bots available.
When I run tremfusion and activate the mod by just selecting it, it ain't working at all, when I do a /map atcs or something, it starts into tremulous' default interface.
When I run /usr/games/tremfusionded and then, in server console, call tremfusion-bots, the console asks me to restart, when I do that, well, still no bots.
Anyone any idea how to solve this?
I already thought of using a virtual machine in 32bit-mode, and run the trem-server from there, if all else should fail.