Just to elaborate on my plans a little bit, I've decided to go ahead and go with SQL for this mod. It has become apparent that the quick and dirty hack that I first envisioned has grown beyond its scope. I've already gone pretty far with this mod, I'd like to take it all the way and my current '.' scheme doesn't really provide a sound structure for that.
I would suggest that anyone wanting to go live with this hold off until this weekend. For anyone who has already gone live with this, if you'd like to switch over the upgrade should be just a few overwrites.
craftzombie: I took a look at superorders, and I think that the necessary edit is in /admin/includes/functions/extra_fuctions/super_orders_functions.php
Search for EMAIL_TEXT_INVOICE_URL. There's only one occurrence. Go ahead and comment out that line such that you have:
// EMAIL_TEXT_INVOICE_URL . ' ' . zen_catalog_href_link(FILENAME_CATALOG_ACCOUNT_HISTORY_INFO, 'order_id=' . $oID, 'SSL') . "\n\n" .
Once again, that will remove detailed invoice links from all e-mails, as you've requested. I'll go ahead and make a genuine compatibility patch for this mod later.
Thanks for all the help and feedback through this,
Joe
Now J_Schilz
Integrated Checkout Without Account (wiki w/pics, demo, download)