Uploaded jpegs won't show on website

Hi, I’m uploading my jpeg photos through Ipswitch WS_FTP Professional and they were created in Adobe Photoshop CS. I used the Save For Web feature, saved them as progressive jpegs, and then uploaded them to the website. But now, whenever I go to another computer, the JPEGS don’t show up! Which is weird because they are present in the Remote folder in my FTP program. What exactly should I do?
Thanks