Hi PamW,
I'm not using these kinds of images, but have you tried looking at www.download.com? There is a lot of freeware image organisation software there, ranging from those produced by big companies (eg Google Picasa) to smaller developers (eg IrfanView, which is very popular). Also, I believe PhotoShop Elements (£60 in the UK) includes organising features, although I'm not sure as to the complexity of information which can be stored.