Unfortunately, the data can only be retrieved for 30 days. For flights which took place further back, there are some airport archives around (of course only for flights to/from this airport), most notably for LHR/LGW: http://www.lhr-lgw.co.uk/groupfiles/newlhrarchives.htm
[Edited 2012-04-30 09:21:43]
PA, AF, UK, BA, AB, DL, LH, FR, BD, A3, EZY, DY //// A319/320/346, B733/735/73G/738/744/763, AT4, 146, CR2, DH4
Thank you so much for this info! This was very helpful...I'm currently taking an around-the-world trip using various airlines/aircrafts and forgot to get this info on my last flight as I'm becoming more and more delirious, lol...ps. I was in Deutschland last week and absolutely loved it! Thanks again!