I am trying to automate a backup procedure that pushes files from the NT disk to another site as a ZIP file using scp [...] Any ideas?!
Well, if you don't mind having three copies of the data (one on the NT server, one on the server with the share mounted, and one on the target server), why not use rsync? rsync can operating over ssh just like scp, and it will copy data incremenetally (that is, it will only copy data that has changed). You could rsync from the NT server to the Linux server and again from the Linux server to the target server. Or, maybe even more efficient, just rsync from the NT server to the target server (then you only have two copies of the data), if you can install rsync on the NT server
See "man rsync" and the various rsync tutorials around the net.