The slide/negative scanner came with Photo Impressions 6. I was not pleased with what I was seeing. On the advice of several people I purchased Photoshop Elements 6. I read several reviews which said the new version wasn't a prize and also the old version was cheaper. I only wanted basic so that worked for me. The difference is incredible. Just using the basic "quick fix" option the results are so much better.
Real life has gotten in the way of my genealogy. I spent the time I had reminiscing over the slides I had scanned. It was worth it. As a result I've probably gone through 100 slides, haven't even tried the negatives with Photoshop Elements.