Keep in mind that logs in pubs like PopComm have a 60 day or more lag between when they receive the log, and when they actually publish.
A basic definition of SITOR can be had here;
There are a few variants of Sitor A reported on occasion - the Russians and Egyptian embassy have both used a variant in the past. Our wiki has
sites with audio samples of both Sitor A and B.
Keep in mind that at first, PACTOR sounds to the ear much like SITOR-A, but PACTOR can and does change transmission speeds, and there is
a special variant of PACTOR that is used by Globe Wireless for email (supposedly secure).
As for software, there are numerous packages that can decode Sitor A/B - see this site;
If the 735 has a general coverage receiver in it, that will do nicely. You need a good receiver with selectivity and the ability to hear SSB without drifting all over the place. Of course, with today's propagation conditions (cruddy) no matter what you use, a good antenna is an absolute must.