Rockin',
Sorry I got lamblasted with crap last night and couldn't poke around for you.
First off, you may want to check out the site that is the nexus of Linux+wireless+Orinoco gear, run by Jean Tourrilhes who works for HP,
here.
I think this will require the following. RH7.2 came with orinoco drivers, which really work better than the wvlan set, but I don't know if they carried over the ISA adapter functionality as that's a lot of code to hack for some old hardware. I'm almost certain they did as I've gotten the driver set to work with my prism2+PCI adapter combo... as well as 3 Orinoco Silver cards
modprobe hermes
modprobe orinoco
Check 'dmesg' to see if the kernel is registering the device. There should be 1 line of goop for the module loading, and then a flurry of 5 lines if it detects the hardware.
There are quite a few modules that go into getting an orinoco card to work. Run a locate for 'orinoco' and you may want to try to probe more if the above doesn't work... and if none of the how-to's off of Jean's page help.
If none of that works... you might need to get a newer kernel. 2.4.12 had a huge Orinoco update and the one to come out in a week or so, 2.4.18, will have another biggie. Compiling a kernel can be rough... so its best to try everything else first.
Also, no matter what, you're going to want to load Jean's wireless tools package which will allow you to mess with the network name (essid), channel, blah blah blah, from the command line. RH would not have installed them unless you installed 'everything' or 'laptop utilities'. Don't try to compile the source off of her site... bleh! The RPM is probably on the second CD, called wireless_tools-something-something-hopefully newer than v.19
Hope that's a start.
Cheers,
Finegan