could be some layout issue.Hard to say what is wrong without looking at the code

hello

try changing the slash

that means images/123.jpg to images\123.jpg or vice-versa

@ Shobhit:

In windows, address of a file are followed by Back slash "\" and in Linux and other OS it follows Forward Slash "/" (You cannot work on .Net on OS other than windows!! ).

When you are not able to see the image in FF Right click and click on View page source tab and check if it is getting the image from correct path or not. Also remember to use '~' for root, rg if u have ur image in images folder then use "~\image\img1.gif" as path.