System IO File Not Found Exception

Question

I try to upload image to my web server by using asp.net. My code can upload the image to the directory. I want take the uploaded image and resize it. Unfortunately my code gives Filo not found error here

 System.Drawing.Image imgPhoto = System.Drawing.Image.FromFile("../aaa/bbb/ccc.jpg");

By the way, it works fine on the visual studio locally.

Here is the upload part.

FileUpload1.SaveAs(Server.MapPath("../aaa/bbb/ccc.jpg"));

Here I try to take the picture and resize it..

try
    {
        System.Drawing.Image imgPhoto = System.Drawing.Image.FromFile("../akademi/resimler/4027.jpg");

        //Resizing code
        //Resizing code

        bmPhoto.Save("../aaa/bbb/k_ccc.jpg");

The web server is IIS 6