Pay attention to the UDXF Yahoo group; as you are new, you might also try for some of the scheduled broadcasts from the USCG. I *think* WLO is still doing their RTTY based news broadcasts - I'd have to check to see whether they're still on the air.
We also have something that will be very useful - most of the better packages allow you to see a waveform of the signal. That waveform is unique to each mode - and allowing for the usual distortion that all receivers introduce (not to mention noise sources and fading), it's often possible to figure out what mode (as long as its not encrypted) is being used.
Take a look here...
HF Digital Decoding - The RadioReference Wiki
WLO News On the Air with RTTY Feed!
Note that the WLO broadcasts are noted at various times of the day - you may need to check this freq a few times to catch their schedule. Although they say they're 24/7 I don't think they actually are, from various reports.
Also note that it's been reported that some of Sorcerer's modes don't work. To me that's not surprising -I've always suspected it to be a hack of another now-commercial package (SkySweeper) so it may not be complete. It's not uncommon for digital DXers to have more than one package in their toolkit - what doesn't work on one package may work in another.
CW decoding by software is iffy at best - the reasons are simple. Different styles of sending, any noise or using a manual vs. an electronic key (bug in our terms) can defeat it. Learning to do that by ear is a better bet.
HTH and GL...Mike