How do upgrade to Apache 2.2.4?

[pchs]

Hi, I'am acquired a VPS on vpscube.it. It is based on directadmin... but the version of apache is obsolete... 1.33.

I would upgrade apache to new version 2.2.4, but I do not know like making....

S.O. is Debian

Please help me?

Excuse me for my english, but I am Italian.

Tank ;)