For years I used IP Photo Plus....and was very happy with it until I tried to reduce the size of jpg.s to send over the net- hotmail has a size limit you can send at one time.
When I purchased my Epson 880 last year, It cam with AdobePhotoshop and some other nifty software.
Now I find Adobe to be far surperior than IP Photo Plus....especially in that the colors printed are more like on the screen......
All in all though, now instead of printing up pixs on the pc I just edit them and send them to an online service for printing, and they come via first class mail in two days. I think the cost of color ink and photo paper for your printer are very similar to having an outside source do it.
Any of the downware sites like
www.tucows.com, www.download.com, or
www.zdnet have tons of organizing software.
As for a viewer, I still use a program called Seaview. While Dos based, it runs well under windows and is much faster loading than most other window programs....loading of the pictures, not the viewing program......