I have a hack for my old Epson 3200 scanner to work on Windows 7 as well, though I rarely use it now.
For my larger images I photograph them with a Canon 400D (reactively old now) with a fairly good zoom lens from a tripod. I find it's nearly impossible to take a good image without a tripod if you zoom. Too much hand shake results in blur and frustration. The most important thing with photographing your images is the lighting, which needs to be even or you'll get dark/light spots over the image. Ideally it should be taken in daylight, but out of direct sunlight (northlight). I can never manage that, so set up my work with as many light sources as possible to make it as even across the surface as I can. I wish I had good lights, but since they're expensive (and I don't do it enough to justify the cost) I usually resort to anglepoise lamps pointing from as many sides as I can - those reflective photography shield thingys might help to bounce the light, but I don't have them either.
I also try and use daylight bulbs to stop the light getting too yellow - tho there is always a colour cast of some kind, but I find a bluish filter in photoshop is good at correcting the colour. The photo is better a taken a little dark than washed out, as you can lighten it digitally, but you can't add back in something that's faded out. Also, if you can, I find it's better to get your camera a little further away and zoom in to the image (if your camera is good enough) as it helps with the edges distortion, though it's easy enough to fix with the Warp tools in PS, the less work you have to do the better. Light use of the dodge/burn then to irradiate light/dark spots - tho you have to be careful as those tools do effect the saturation and colour as well as light/dark.