i would like to track flights inside europe do anyone know how to do that or do i need to go to another website?
flightaware.com/about/faq.rvt#intl in the frequently asked question (FAQ) should answer your question.
Only one I know of. EU does not consider flight data as public domain.
There is a feed available from the UK/EU just like the feed we recieve from the FAA, but redistribution is limited to airspace users (who pay nav fees) so there is no public access.
You can only enter an airport ID, and you must use the 4-character ICAO codes (eg. EHAM for Amsterdam, not AMS).