aix cert 223 need help.

Hi,
a friend of mine passed there 223 last year and they gave me there testkiller document which was 65 questions, i am looking at doing my 223 exam and i have gone to testkiller recently and noticed there is an updated version which is now 383 questions.
I did the ibm pre-exam and all the questions were from the first document i received back in 2008. so i am worried as im doing the exam soon whether the old document is valid otherwise i need to now study 383 questions.
can someone who has completed this recently please advise and point me in the right direction.

thanks.

help?