I cant get a created attachment for a form record submission.

I am using following code in custom biz form. Created my own control.

I have a fileupload field (Upload File) in the defined biz form:

string bizFormName = "JobsForm"; //name of your form in cms desk
        string siteName = CMS.CMSHelper.CMSContext.CurrentSite.SiteName;

        BizFormInfo bfi = BizFormInfoProvider.GetBizFormInfo(bizFormName, siteName);
        try
        {
            if (bfi != null)
            {
                // Read data type definition
                DataClassInfo dci = DataClassInfoProvider.GetDataClass(bfi.FormClassID);

                if (dci != null)
                {
                    IDataClass formRecord = DataClassFactory.NewDataClass(dci.ClassName);

                    formRecord.SetValue("FirstName", FirstName.Text);
                    formRecord.SetValue("LastName", LastName.Text);
                    formRecord.SetValue("Email", Email.Text);
                    formRecord.SetValue("Phone", Phone.Text);
                    formRecord.SetValue("JobName", JobName.SelectedValue);

                    CMS.DocumentEngine.AttachmentInfo ai = new CMS.DocumentEngine.AttachmentInfo(Resume.PostedFile);
                    ai.AttachmentSiteID = CMS.CMSHelper.CMSContext.CurrentSite.SiteID;
                    CMS.DocumentEngine.AttachmentInfoProvider.SetAttachmentInfo(ai);
                    formRecord.SetValue("Resume", ai.AttachmentName);
                    formRecord.SetValue("FormInserted", DateTime.UtcNow);
                    formRecord.SetValue("FormUpdated", DateTime.UtcNow);
                    CMS.FormControls.BizForm form = new CMS.FormControls.BizForm();
                   
                    error.Text = getValidation();
                    if (String.IsNullOrEmpty(error.Text))
                    {
                        formRecord.Insert();
                        bfi.FormItems++;
                        bfi.SubmitChanges(false);
                        form.SendNotificationEmail(bfi.FormSendFromEmail, bfi.FormSendToEmail, formRecord, bfi);
                        Response.Redirect(bfi.FormRedirectToUrl);
                    }                    
                }
            }
        }
        catch (Exception ex)
        {

            error.Text = ex.Message; 
        }

It saves great, but when the link comes up, through this file:
/CMSModules/BizForms/CMSPages/GetBizFormFile.aspx?filename=EI_Lead_Generation_Requirements_01_29_13.docx&sitename=FortecMedical

It doesn’t find the server path.

I configured the file paths appropriately in Site Manager, or so I think:

This is what filepath it is looking for:
C:\inetpub\sites\fortec\fortecmedical.com\fortecmedical\custom\FortecMedical\EI_Lead_Generation_Requirements_01_29_13.docx

The highlighted is not even existing directories, yet the GetBizFormFile.aspx attempts to look for it through:

if (CurrentUser != null && CurrentUser.IsAuthorizedPerResource("cms.form", "ReadData"))
        {
            // Get file name from querystring.
            string fileName = QueryHelper.GetString("filename", String.Empty);
            string siteName = QueryHelper.GetString("sitename", CurrentSiteName);

            if ((ValidationHelper.IsFileName(fileName)) && (siteName != null))
            {
                // Get physical path to the file.
                string filePath = FormHelper.GetFilePhysicalPath(siteName, fileName);
                
                if (File.Exists(filePath))
                {

                    // Clear response.
                    CookieHelper.ClearResponseCookies();
                    Response.Clear();

                    // Prepare response.
                    string extension = Path.GetExtension(filePath);
                    Response.ContentType = MimeTypeHelper.GetMimetype(extension);

                    // Set the file disposition
                    SetDisposition(fileName, extension);

                    // Get file binary from file system.
                    WriteFile(filePath);

                    CompleteRequest();
                    //  RequestHelper.EndResponse();
                }
                else
                {
                    Response.Write(filePath); //my code here
                    Response.End();
                }
            }
        }