I was 'talking' with Holly yesterday here about our tutorials.
ACDSee Photo Manager 9 is a great product for organizing your digital scrapbooking kits & photos!
It's flexible for cataloging & powerful for searching.
A couple of great things about it are that you can search for whatever you've tagged and view white png files.
Here's an example of a search to find my buttons:
and you can view white png's like stitching & overlays
We have tutorials here for Getting Started & Organizing your Alphabets And a 30 day trial can be downloaded at the top of the tutorial page.
My sister & I have a forum at DigiScrapInfo.com where you can ask questions and searchable FAQ's.
DigiScrapInfo.com also has a lot of helpful information related to digital scrapbooking also.
Let me know if you have questions!