http://webpages.charter.net/bert/reconron.htmlthe whole point is to do 5 sets of the amount of reps listed for 6 days a week. then you have an off-day, then the next week you move up to the next amount. It's a perfectly good program, but you have to be able to do at least 6 pullups first.
If you can't do 6 pullups, do what everyone else does, every time you walk by a pullup bar (preferably put it somewhere you walk by a lot, like on a doorframe to your kitchen or bedroom or bathroom) then crank out as many pullups as you can do each time. If you can't do any yet, start working on negatives