On the first page of the Install Guide, one is told to "Run this SQL query on your store's database:"
ALTER TABLE 'orders' ADD 'transaction_details' NEXT NULL AFTER 'cc_expires';
I got syntax errors if I ran the query like this, using the "mysql_send.php" program from the book "PHP & MySQL for Dummies" (which uses mysqli instead of mysql commands). But after I eliminated the single quote marks from the query, then it worked just fine, as...
ALTER TABLE orders ADD transaction_details NEXT NULL AFTER cc_expires ;
I don't know enough about MySQL queries to know why this is so.
Another problem I found with the Install Guide was on page 2, where it said to make a change to the catalog/admin/orders.php . The problem is that "before" and "after" examples shown are identical. There is no indication just what changes need to be made.