Personally I think it's a bad idea to keep the SB.
You'll see I joined this forum in 2004. That was in the days I used an SB Audigy II and Cakewalk Guitar Studio.
I fought for 5 years with my Audigy II card. I refused to give up on it because I had paid $250 and I loved the set up with all my jacks on the front of my computer with controls etc. I was told that you needed ASIO drivers but the Creative ASIO drivers would not work so people here told me to use MME. This made it stable but out of sync with overdubs.
I had my Atari system synced to my Yamaha MD8 recorder. I also used hardware for sounds all patched through a Yamaha 01V digital mixer- So audio on the MD 8 and midi was Atari driving hardware synths all mixed to SPDIF to DAT tape, nice system but--
I was keen on getting Cakewalk to work so everything would be ITB, but all the audio would be out of sync. Also I would have drop outs and every possible thing that could go wrong would go wrong.
I was told to get a proper interface so bought a M Audio fast track pro :( and finally after fighting for 5 years I could now record in Cakewalk. But I was still ignorant about using Soft synths. That was my next revalation!
I had to totally remove the SB card from any DAW computer because it caused issues with any other ASIO drivers. Beleieve me I tried a few times to make it work on different computers...
Note:
my Son gave me this Card Deluxe
http://www.pcrecording.com/carddlux.htm PCI card
and I have used that side by side with other interfaces with out issue. Only the SB card ever has caused me greif.
I'm not sure why you would want to use those SB old sounds when there is so much available now that is 100% better sounding and a lot of it can be gotten for free from Web sites like KVR. Or the complete Air packages go on sale for under $50 which have more sounds than anyone could use in a million years.
I think the heart of your problem is your not progressing forward with you set up. Even using old versions of Sonar will have issues when trying to set up on a modern PC. But most of us have left anything to do with Wavetable or Sound fonts way behind and everyone uses VST soft synth now without issue. Another eason to at least upgrade to Home Studio is you will get TTS-1 and a few way better sounding GM synths to use. And the metronome will work just fine if your using a RME interface it will all be rock solid and no sync issues..
Warning. do not attempt to have 44.1 and 48 on your system, that will be a train wreck.