i am using tripod for my web server.how do i upload images to my server space as said in http://lissaexplains.com/html3.shtml under "how do i add images"

I also use Tripod.com. You question implies that you are able to upload files excepting images. I really don't know any other answer except to say you upload all files the same way. Just right click on the file name in the local directory and click upload.