I've just added nmapsql-0.0.8 which supports nmap 3.75. The target tagging system has been completely rewritten and a some bugs ironed out.
As an offshoot of nmap-sql, I've just added a tiny parser that reads .nbe files generated by nessus and adds it to the nessus_results table in the same nmaplog database.
I was tempted to just parse nessus' results forgoing nmaplog, but then nmap provides a bunch of other info which nessus doesn't. So I'll keep both around.
Uploaded a ready-to-compile tarball of nmap-3.48 sources, with the nmapsql-0.0.2 patches already applied. Download nmap-3.48-with-sql-0.0.2.tar.gz. Make sure you run ./configure before compiling on your system.