editing href in gallerific block

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Hi- I'd like to modify a gallery block so that the link to original version is other than the image linked to the thumb.

here is a sample page for reference

http://www.stephenscott.ca/current-work/164/...

for each image there is an href (see line 93 for example)

what i want to do is create a custom version of the block but with a default that links this line in each image to a different gallery, and image (high res versions of the image).

I would be tickled if someone could get me started on this project.

Eulalia