Hey Leemo! That link doesn't work! Can you double check it and post it again please?
Athina, if you want a list of all the companies operating in Europe and their website, try
www.airways.ch and click on "airlines" in the left menu. Once the list appears, you can simply click on an airline to be automatically redirected to their webpage. From there, you'll have to look for "our company" or "employment" or "site map" until you find vacancies or info about how to apply... it really depends on how each website is organized.
I recently applied with Air2000 in the UK but there are many more to look at. Definitely not a one-day-job. Since there are slightly under 200 companies in Europe and applying to all of them would take for ever, I suggest you start with the ones in the EU (where you have the right to work, as Xenia mentioned). Check for airlines that fly to Greece since you speak the language. I know EasyJet fly to Athens and are constantly recruiting, with 2 cabin crew ground school per month!!
Another good way to save time is to select the airlines that are currently advertising for staff on their website, download their application form or e-mail their "contact address" and ask for a form sent to you by mail.
Unfortunately, many airlines do not advertise their vacancies, making it hard for applicants to know when to apply. Don't let this put you down! If you are what they are looking for, they'll keep your resume on file! If a specific airline really appeals to you, it's always worth trying.
Good luck!
Mrs. FloatJockey