Thanks JimmyV! By the way, don't be afraid to poke around. I'd never coded a thing with PHP, and had only created a website for a class once until I started my website. I've never read a book about PHP or HTML - Everything was learned on the job. Just look at the code, after a while, it becomes obvious what is going on. The changes to v3.0 were gradual on my end, and I have been using it on my site daily. I'm fairly confident everything works, but of course, there is always the risk of a bug here and there. :)

kburner - yes, that will work. But, you are making this much harder than it needs to be. Just compress every file and directory INSIDE the purchase orders directory, upload it to the main directory, and then uncompress. All files should be where they are supposed to be unless you have renamed the admin directory. Your mistake was to uncompress the file as is. FYI- You'll never need the readme or .SQL files to be uploaded. These can always be excluded. However, I do have a file that is VERY important in the root directory - confirm_track_sub.php - so don't forget that!!! If you are new to Zen Cart I have two pieces of advice:

1) Backup before you do anything.

2) Read the instructions carefully included with each mod. They will usually have step-by-step installation instructions.

Good luck!