P90X-Ab Ripper X alternative

Does anybody know of any alternatives to Ab Ripper X?  To be frank...I tried the excersises...some I was able to do with TERRIBLE form, some I wasn't able to do at all.  Tony Horton says it is "Ab Ripper 339", not "Ab Ripper 101"...Anybody got a good routine to get started and built up to the "339" level?  I don't just want to leave it out.  Thanks.

http://www.menshealth.com/spartacus/downloads/MH-Spartacus-W orkout.pdf

I just saw this yesterday and it looks like a good place to start.

http://www.menshealth.com/spartacus/workouts/

Heres the website program intro page that also has a video as well as the pictorial program download.

Hey thanks Joe.  I'll take a look at this.  The P90X is extreme and I love it...but I'm not ready for the abs portion.  Hopefully by the end of the 90 days I'll be there.  Thanks again.
-Brandon