Output taxonomy image as a link to another CCK filed

Issue Summary

I have a CCK filed called "attachment", which is a Generic File CCK file (used for uploaded attachment)

In Views, I added this filed to view and make it "Exclude from display".

I also add Taxonomy Image to the view.

Now, I want to add a link to attachment on the taxonomy image.

How can I do it?

In Views, if I select Output this field as a link (for the Taxonomy Image field), I have these choices

Fields

* [title] == Node: Title
* [field_output_pubdate_value] == Content: Publication Date - (field_output_pubdate)
* [tid] == Taxonomy: Term image

If I select Output this field as a link (for the Generic Files field), I have these choices

Fields

* [title] == Node: Title
* [field_output_pubdate_value] == Content: Publication Date - (field_output_pubdate)
* [tid] == Taxonomy: Term image
* [field_output_size_value] == Content: Size - (field_output_size)
* [field_output_attachment_fid] == Content: Attachment - (field_output_attachment)

Can anybody kindly suggest me how to add a link to the attachment on Taxonomy image?

Thank you,