Uploading Folder to FTP

[readbanana]

I am trying to upload images to the ftp. I need to have it in a compressed folder called by a specific name and then upload that folder to a specific directory. Each time I try, I get an error The remote server returned an error: (550) File unavailable
This code works fine when I am trying to upload one image at a time. Here I am trying to upload a whole folder. I checked the uri (I copied it from the debugging) and it went there just fine. Is there a different way that I have to do the upload folders?

string ftpPassword = ConfigurationManager.AppSettings["ftpPassword"].ToString();
            string uri = remoteDirectory;
            FileInfo fileInf = new FileInfo(FileToUpload);
            // Create FtpWebRequest object from the Uri provided
            FtpWebRequest reqFTP = null;
            reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
            reqFTP.Credentials = new NetworkCredential(ftpUsername, ftpPassword);
            reqFTP.KeepAlive = false;
            reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
            // Specify the data transfer type.
            reqFTP.UseBinary = true;
            // Notify the server about the size of the uploaded file
            reqFTP.ContentLength = fileInf.Length;
            // The buffer size is set to 2kb
            int buffLength = 2048;
            byte[] buff = new byte[buffLength];
            int contentLen;
            // open file to be uploaded
            using (FileStream fs = fileInf.OpenRead())
            {
                try
                {
                    // Stream to which the file to be upload is written
                    using (Stream strm = reqFTP.GetRequestStream())
                    {
                        // Read from the file stream 2kb at a time till Stream content ends
                        contentLen = fs.Read(buff, 0, buffLength);
                        while (contentLen != 0)
                        {
                            // Write Content from the file stream to the FTP Upload Stream
                            strm.Write(buff, 0, contentLen);
                            contentLen = fs.Read(buff, 0, buffLength);
                        }
                    }
                    reqFTP = null;
                    ////Update the database with the new image location and delete the img from the uploadedimages folder
                    //DataAccess.UpdateImageDB(item.ProductID, item.ImgFolder + "/" + item.IMG);

                    System.IO.File.Delete(fileInf.ToString());
                }

                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message, "Upload Error");
                }