Hi Ramona, I am hoping you were able to get this problem resolved by now. But just in case:
1.) Remember that you must have the images both in your local site and on the remote site (the server). I always upload the images first, before uploading the new web page - that way the images are there and available to the web page.
2.) Do you know about relative versus absolute links? When you set up your site, you designate the links -whether to other web pages or to images - as being relative to a particular and specific web page, or you designate them as being relative to the site root. There is a big difference!
If it is any comfort to you, I think everyone who works on the web has gone through what you are going through. Let me know if you have any additional questions.