This might explain why the RA and DEC info isn’t auto-populating, but I don’t know enough about the info in fits headers to know for sure. But regardless, the local astrometry blind solver should solve the image without that hint data (hence “blind” solve). Also, it sounds like ansvr is not working correctly if you aren’t seeing any activity in the ansvr log.
Please do post a dropbox link to one of the images you’re trying to solve. I’ll see if I can solve it on my machine.
Regarding Platesolve2, please see the following link:
You don’t need to download or install platesolve2; it is included in the SGP beta(?) install. However, you do need to download the astrometic index, APM catalog. The above thread should guide you.