After copious searches of the poser forums here at Rendo, I finally got my Poser 8 working with my old library.  From the cursory examination I've had, I like what I see and I'm no longer cursing myself for spending the money I spent.

Here's one change I'd love to see, and maybe P8 already does this and I haven't figured it out:

Like many people these days, I'm running Poser on a dual monitor setup.  I usually drag the library window over to the second monitor and it fills up the whole second screen.  When you do this in P7, the folders will fill up the entire screen going sideways and therefore, you have less scrolling.  P8 doesn't seem to do this, and no matter how big you make your library window, you just get a vertical of folders.  I would love to see the folder window operate in a similar fashion as P7's did, so I won't have to scroll up and down and all my folders are visible at the same time in a fully expanded window.   Like others, I would also like to see the folders get bigger...