Those instructions I do not believe say to do before or after they simply tell you how cookies are set.
You login to your gallery admin go to cookie settings and they should look like this
cookie path /
cookie prefix bb
cookie domain .apeekintoyesterday.com
You then go to config settings in photopost admin and where it asks for
vb license number you must have your license number set in there. Not customer number. your
vb license number is found at the top of your
vb php files.
You then go into
vb admin and under there cookie settings it should look like this
cookie path /
cookie domain .apeekintoyesterday.com
Your cookie prefix is hard coded in the
vb config file and is by default bb