The USB ports are working? If yes...is Poseidon showing any devices attached to the USB ports (apart the internal HUB)? If nothing is shown (e.g. card reader) than it is not recognized and therefore unusable by Amithlon...as an example...my EeePC has in internal Bluetooth adapter and it was recognized by Poseidon...the issue is that there are no drivers for BT made for the Amiga...
PCMCIA is not supported by Amithlon AFAIK...