[Orgmode] Using latexmk for LaTeX compilation

[Dror Atariah]

I want to use latexmk as the LaTeX exporting engine, I following this link's 
(http://orgmode.org/worg/org-faq.html#using-xelatex-for-pdf-export) 
instruction, but it didn't work.

Note, that exporting the .org to .tex file and then manually running latexmk 
-pdf works flawlessly.

I'm very new to emacs and I can't find what is wrong here.

I also posted a question here 
http://tex.stackexchange.com/questions/10562/emacs-org-mode-and-latexmk. You 
can find some more details there.

Thanks a lot!
Dror