Downloading AVP 2010 from another source? (Bought on steam)

[Seemly]

Hi, I recently registered to ask this question, if this is not the right place, you can feel free to remove the topic, but I 2 years ago I bought AVP 2010. the game took about 1 week to download (Slow internet) and don't want to wait for another 1 week, but there is another source which got the game as 4gb. is it possible to use it's files in steam? if so how?

[Lucifero]

If you purchased the game from Steam  wait download.
if you have the DVD of the game you can use it.