You need to resize your pic to about 450 pixels by 450 pixels. Once it is that size, it's usually small enough to fit on here.
Microsoft's image resizer tool is very handy for this. (
http://www.microsoft.com/windowsxp/d...powertoys.mspx)
Once it's installed, right click on your picture in Windows Explorer, choose resize and then custom in the box that opens, you can then set it to 450x450 and it saves as a new file. If you have loads of images to resize, highlight them all and right click and it'll resize them all at one go.
Hope that helps!
Rachael