Anyone care to tell me where is the Packing List file located? I want to edit the line that says "Thank You for Shopping with Us!"

All the text displayed in CubeCart is stored in /language/[CountryCode]/lang.inc.php

In your case, /language/en/lang.inc.php. Then just do search for what you want.

Now see, this is why I like NOT being way too smart cuz you get Sir William's

sunshine, I'm not sure if that was a compliment or an insult, so I'll take it as a compliment.

you're right Sir William. Somehow I get the feeling it's befitting lol.

Can a company logo be added to this document...and if so does anyone know where to paste the html for it?

Yes trendyhats this can be done. There may be a different way for somebody else, but this is how I have done it and it worked perfectly for me with NO problems..open up /modules/gateway/Print_Order_Form/orderForm.tpl and near line 18 or directly after enter the source code you require