JoeBOT and podbot mm doesn't want to work together , so until Aspirin will not find free time to look at it - You may forget to get them together to work.
About metamod and podbot installation procedure - look at this topic - it should help You a bit.
http://forums.bots-united.com/showthread.php?t=2576
Then - if You will done everything like in that topic - get the linux AMD64 build of PODBOT mm R2B46c posted here:
http://forums.bots-united.com/showthread.php?t=4035
[EDIT]
About this podbot mm and JoeBOT problem - maybe it's even not the problem in JoeBOT, but without help of Aspirin we can't solve it.
[/EDIT]