Persevere, it is worthwhile. I had these problems too. Solving them required me to change my firewall from ZoneAlarm free version to Eset Smart Security. Now the library works and Poser 8 is a huge improvement over Poser Pro which I used before.

Poser 11 Pro, Windows 10

Auxiliary Apps: Blender 2.79, Vue Complete 2016, Genetica 4 Pro, Gliftex 11 Pro, CorelDraw Suite X6, Comic Life 2, Project Dogwaffle Howler 8, Stitch Witch