Recovery from website hijack!

I woke up today morning and took a glance at my website, and whoa, some lame looser hijacked my website using a security vulnerability on Drupal. The index.php was replaced with a one line message:
SPYKIDS INSIDE Contacts? spykids.br@gmail.com

Luckily I restored my website from backup, and upgraded the portal to Drupal 4.6.3. All I'd say to the wasted soul that tried a website take-over would be: "Nice try lamer... better luck next time.

As I've upgraded to the latest version of Drupal, there have been some issues with migrating the old theme... perhaps, I must code it again...

Moreover, I've been more impressed with Etomite and MODx CMS these days. Perhaps, I'll need to work on migrating to them.

Lastly, a few words of advice to the script-kiddies and the website hijacker wannabe:
"You might as well devote your precious time and give your life a purpose by cleaning up garbage on streets of your city, for instance, than waste your life over this website hijacking nonsense. Good luck :-)"