Attached Link: http://www.senosoft.com/

Artnik, there is already a Poser library management utility. It is called P3dO Explorer, available here in freestuff section. It is a mature program with a lot of features. It probably won't fit all the needs you have but most of them. There are also some addon plugins like a Zip Through viewer which actually display the thumbnails from inside the Zips. You should give it a try... and it is free ;)) Yarp

Yarp - author of P3DO Organizer for Poser