You could do this in code and upload them wherever you wish, but if you are doing it from the back office then this is how umbraco stores it's files, not sure if it can be over-ridden or not

Hello Amir,

Try this :-

private static void Media_AfterSave(Media sender, SaveEventArgs e)
{
string fullImagePath = sender.getProperty("umbracoFile").Value.ToString();
string fullParentImagePath = "";
Media parentMedia = new Media(sender.Parent.Id);
string sourceFile = HttpContext.Current.Request.MapPath(fullImagePath);
var fileName = Path.GetFileName(fullImagePath);
//parent already has an image created
if (parentMedia.getProperty("umbracoFile").Value.ToString() != "")
{
fullParentImagePath = parentMedia.getProperty("umbracoFile").Value.ToString();
var destinationFolder = Path.GetDirectoryName(fullParentImagePath);
string destinationPath = HttpContext.Current.Request.MapPath(destinationFolder);
//delete file is already exists
if (File.Exists(Path.Combine(destinationPath, fileName)))
File.Delete(Path.Combine(destinationPath, fileName));
//copy file
File.Copy(sourceFile, Path.Combine(destinationPath, fileName));
}
else
{
int parentFolderId = parentMedia.getProperty("umbracoFile").Id;
string mediaPath = "/media/" + parentFolderId + "/";
string parentPath = HttpContext.Current.Request.MapPath(mediaPath);
//create directory
if (!Directory.Exists(parentPath))
{
Directory.CreateDirectory(parentPath);
}
string newFilePath = Path.Combine(parentPath, fileName);
//copy file into directory
File.Copy(sourceFile, newFilePath);
//set property value for initial image
parentMedia.getProperty("umbracoFile").Value = mediaPath;
}

}

is working on a reply...