Maask

Isn't it just turn the code on, go to deposit/move in the PC, mark the pokemon you want with a star, then put it in the box?

You could use an EV/IV checker code or just see if the stats changed.

http://us.codejunkies.com/support/article.aspx?article_id=434 If you have a regular DS one http://us.codejunkies.com/support/article.aspx?article_id=433 If you have a DSi Or download from the link posted by Pokemon_Breeder_Moo and follow the same steps as whichever version of the code manager you're using. Also, another confirmation from a newbie about v1.55 working.