How to force a module to load at boot

[Rich B <deblists@osg.saic.com>]

This has to be an easy one, but I'm lost.
I don't know the correct way to force a kernel module to load at boot.
I got a new PCMCIA network card for my laptop. The old one loaded the
correct module automagically, but the new one doesn't. I have to eject
the card and re-insert it before  the xircom_cb loads. I've looked at
/etc/modules.conf, but can't figure it out.

How get the module to load at boot?
Where can I learn how modules are normally loaded?

Thanks,
RichB