This may be unknown and of very high interest to some: there is a new PoFV netplay patch: http://coolier.sytes.net:8080/th_up2/src/th2_6202.zip
Apparently it's running much smoother than the old one, you can try on hamachi pofv/pofv or ask for a match in #shrinemaiden on ppirc.net.
Besides this news I'd like to ask for a little help:
I had some troubles getting hamachi to work (it crushed my internet with some mysterious error but WinsockxpFix did the trick) and every time played we got like 10 FPS. My router seems to force me using hamachi even after opening the correct ports. Any idea what the reason behind my problems could be?