/dev/hda = primary master
/dev/hdb = primary slave
/dev/hdc = secondary master
/dev/hdd = secondary slave
MSN Messenger for Linux? There's LOTS. I prefer Gaim, but go to www.google.com/linux
(aka G4L) and try a search there for msn messenger. You'll get more hits than you can shake a stick at. If you want to take a stab at Gaim, it's a good one.
Sound Blaster Audigy 2 modules (drivers) can more than likely also be found at www.google.com/linux
if you type in your make/model and the word modules. Also, you'll probably have to edit your permissions to listen to sound. More on that later. To check to see if your RH9 can auto-detect your card, login as root at command line and type:
Hopefully you've got this installed already. If so, it will try to detect it and configure it. If you've got it, and you're done with that, type:
--type M to mute/unmute channels, use arrows to move around and change levels
After this is done, type:
chmod 755 /dev/dsp
to allow your normal user accounts to use the sound server.
Drivers/modules for your logitech stuff can also probably found on G4L. Setting up your mouse/keyboard will be a different story. You'll need to configure your X using xf86config
(or whatever the equivalent in RH is for that tool.
Firebird--yes. I'm running it right now and responding to you on it.
Go to G4L, type in Firebird, and download it. When you get it, you'll need to install it. Since you're using RH9, you'll want to download the RPM for it and run the necessary commands to install it. I'm not familiar with RPMs so I can't help you there, but there are LOTS here who can. Hope this helps.