I'm afraid that I've been lurking on this and other threads devoted to the new Library in Poser 8.  Unfortunately, I am one of the people that, after trying everything that's been described to fix the problem, still cannot see the Library in Poser 8 at all.

In the end, I moved all of my Poser content (P6-P8) to a portable drive, and upgraded my P3d0 Explorer to recognize P8 as a valid Poser program.  I can now at least use the program with P3d0 to load and save stuff.  I had to do the move to the portable (500 gig) drive because I was running out of room on my internal 250 gig drive, which was just adding to my problems.

Of course, now that I'm on a portable drive I despair of ever getting the Library to work properly because of the need for the content to be on a Shared Drive.  How do you share a portable drive?  When I right clicked on the Poser folder on the drive, it told me that to share this folder I had to drag it to the shared folder (which, unless I'm grossly mistaken) resides on my C: drive and would then over fill the drive's capacity again.  The only way that I can see that working is if the shared folder does not in fact contain the folder contents but a link to them...