steap one. spell words right! surver is not how you spell server, you have said it two times and i do not know how you have because U is on the other side of the keyboard .
step 2. dont worry about dyndns, thats a website to make your ip that people connect to shorter, so my normal ip is 202.89.18*.** but if i get dyndns to make it shorter i can call it
pbcr**t.dyndns.org.

step 3, get craftbukkit off bukkit forums, should be called craftbukkit-0-0-1snapshot.jar.
remove all that -0-0-01 thingy, and you should have a .jar folder called craftbukkit.jar in a random mc server. now make a txt file...........

[edit] i fail also, you have a mac i wouldnt no such a thing on mac, but i think the first steps right

Lol, epic server noob.
1. set up all your options and your world file.
2. forward your port so it can work, or just use hamachi
3. play on it
(lazy reply lol)