I have a WCF servuce which consumes the media service to allow me to view and upload media items. 

public int UploadMediaFile(MediaFileDataContract mediaFile, string campaignUrl)
        {          
            using (var proxy = new UmbracoMediaService.mediaServiceSoapClient("mediaServiceSoap", string.Format("{0}umbraco/webservices/api/MediaService.asmx", campaignUrl)))
            {
                string extension = System.IO.Path.GetExtension(mediaFile.TemplateName);
                string fileName = mediaFile.TemplateName.Substring(0, mediaFile.TemplateName.Length - extension.Length); ;

                if (proxy != null && IsUserAuthenticated(campaignUrl, username, password))
                {
                    UmbracoMediaService.mediaCarrier media =
                        new UmbracoMediaService.mediaCarrier
                        {
                            ParentId = ParagoRootId,
                            TypeAlias = "File",
                            TypeId = 1033,
                            Text = fileName,
                            MediaProperties = new UmbracoMediaService.ArrayOfMediaProperty()
                        };

                    media.MediaProperties.Add(new UmbracoMediaService.mediaProperty { Key = "umbracoExtension", PropertyValue = extension.Replace(".", "") });
                    media.MediaProperties.Add(new UmbracoMediaService.mediaProperty { Key = "umbracoBytes", PropertyValue = "" });
                    media.MediaProperties.Add(new UmbracoMediaService.mediaProperty { Key = "umbracoFile", PropertyValue = mediaFile.TemplateName });

                    media.Id = proxy.create(media, username, password);

                    proxy.writeContents(media.Id, mediaFile.TemplateName, mediaFile.mediaData, username, password);                    

                    proxy.update(media, username, password);

                    return media.Id;
                }
            }
            return 0;
        }

I am having some difficulty uploading a new media item. My code is as follows:public int It runs without error and I can see that the media item is created in Umbraco and that the file is copied to the media folder. However the link to the media item file is not being set and as such the item dese not belive that a file is loaded. Can anybody spoit what I have done wrong.ThanksKen