File Upload
WA_DFP_UploadFiles("WA_UploadResult1", "Contact_me_group_2_File_attachment_2", "0", "", "false", $WA_UploadResult1_Params);
but the file upload field on the up_load2.php page doesn't have an "_2" at the end, so it should just be:
WA_DFP_UploadFiles("WA_UploadResult1", "Contact_me_group_2_File_attachment", "0", "", "false", $WA_UploadResult1_Params);