i just bought halflife 2 on e bay and when i got it its only the thi version is there anyway of sorting this back to english.
Threaten to give the guy negative rep unless he gives you the english version.
.. or just download steam and enter in your half life 2 cd key. Should change to english, and if it doesn't there's an option in the menu. You need steam anyway.
Sell it to some other stupoid n00b for a bit more, and use the money to buy an engilsh version.
yep KoH is right.. download steam