Okay, Hofster, I'm getting an error when trying to add the column
to cost in phpmyadmin. The problem is that when I try to set the default, I select "As Defined:" and then put in "0". However, it's saying that it's invalid.
EDIT:
Okay, so I got it to work but I had to add each column individually.
EDIT:
Whoo! Went through and did it all manually and now it appears to be working! I'll be testing it out soon :)