How did you setup the Pass Through Variable fields on the report?
DIdn't see the attachment.
If you can export the report and upload it here I can take a look.
Pass Throughs are always tricky.
When you click reply at the bottom you will the "Upload Files" link.
Click it and then use the Browse to select the export file,
No attachments on the other post.
I sent a message on here maybe it will work?