Document Gallery and Document _Revision plugins

1-Is there any way to use document gallery plugin and document revisions plugin together, I mean as far as keeping the document in one place (upload). I had both plugins installed, but they are not reading each other.

2-I find this great code for bulk import: https://github.com/benbalter/WP-Document-Revisions-Code-Cookbook/blob/master/bulk-import.php , but i am not sure how to use.
Should i save it and place it in the includes folder? That would be enough? Should I add include code to all other pages?

appreciate any help.