Typical high speed connections are only fast downloading and not uploading. I assume ISP's do that because they don't want you running servers from your home. Typically upload speeds are restricted to 128k where as average dsl download speeds are 10-20x that fast.
Couple the slow upload speeds of modems and some dsl/cable connections with todays digital cameras that take high quality photos that require a couple megabytes each and you have a problem.
There are a few things you can do:
1.) turn your digital camera to 1600x1200 or "low quality" setting. We resize them all down anyways to 1024x768 so you don't need all the extra pixels digital cameras have today. My new camera takes pictures at 4000x3000. That's great if you want to print an 8x11" photo but it's more than overkill for a photo going into eBay and when peoples monitors are typically set to 1024x768 wide. A 4000x3000 photo would be 4x wider than most peoples screens. It's also about 30x bigger in file size which means 30x longer of a upload.
2.) So the easiest way is #1 just to turn down your cameras resolution and quality setting to low. If you cant do that or find the results lacking in some way then take them how you normally do then use a photo editing program to resize the images to 1024x768 before you upload them to us. There are free editors such as irfanview.com, Picasa, etc.
Either of the above should cut your upload times by 10-20x. So from 30 minutes down to 2-3 minutes in the one example above.
If you look at the file sizes of the images on your computer before you upload them to us they should be 200k bytes or less. My new digital camera usually starts with them around 2-3 megabytes which is 10-15x that big.