Garry's Mod server NPC animations

I have had this server up for quite a while now and I haven’t been able to fix the Npc animations, I looked around and tried extracting the GCF’s into the server folders ( server/hl2, or server/orangebox/ ), but it seems like nothing works, so I thought I’d create a help thread
below are just some of the glitches that happen

http://img694.imageshack.us/img694/6711/gminfinigrass0008.jpg

http://img407.imageshack.us/img407/2234/gminfinigrass0013.jpg

http://img535.imageshack.us/img535/9805/gminfinigrass0010.jpg

I’m not sure what causes this, but it seems like a lot of people have this problem