I lost my lancard driver so net is not working wat can i do

Problem with the Acer Extensa 5420-5687 PC Notebook and lost my lancard driver?... FTP directory /notebook/extensa_5420/driver/ at ftp.work.acer-euro.comTo view this FTP site in Windows Explorer, click Page, and then click Open FTP Site in Windows Explorer. Welcome to ftp.support.acer-euro.com for questions please use the web request form http://support.acer-euro.com/request/index.html local time is Mon Jun 27 15:19:43 2011 you are user #159 out of possible 2000 user on this server in this user group. For more information please consult our webserver at http://support.acer-euro.com. Please also read the legal disclaimer at http://support.acer-euro.com/disclaimer.html Up to higher level directory
10/15/2010 12:00AM 31,210,817 Audio Realtek v.5.10.0.5423.zip 10/15/2010 12:00AM 101,239,097 Bluetooth v.5.1.0.3300.zip 10/15/2010 12:00AM 2,815,665 CPU AMD v.1.3.2.zip 10/15/2010 12:00AM 1,604,432 CardR O2 v.1.0.2.8.zip 10/15/2010 12:00AM 4,369 FIR.zip 10/15/2010 12:00AM 1,975,192 Lan Marvell v.10.12.8.3.zip 10/15/2010 12:00AM 3,429,775 LaunMgr v.2.0.081.zip 10/15/2010 12:00AM 693,826 Modem Agere v.2.1.77.9.zip 10/15/2010 12:00AM 3,812,345 Modem_Conaxant(Foxconn)_v.7.62.00.zip 10/15/2010 12:00AM 4,929,105 SMBUS v.5.10.1000.6.zip 10/15/2010 12:00AM 25,775,814 Touchpad_Synaptics_v10.0.15_Vistax32x64_XPx32x64_for_Wistron_models_GETPC010.zip 10/15/2010 12:00AM 136,138,332 VGA_ATI_v.8.473-080309a.zip 10/15/2010 12:00AM 5,854,130 Webcam Bison v.7.32.701.07.zip 10/15/2010 12:00AM 7,315,253 Webcam Suyin v.5.7.29.500-1.0.zip 10/15/2010 12:00AM 2,789,187 Wireless Atheros v.5.3.0.45.zip 10/15/2010 12:00AM 2,707,733 Wireless Broadcom v.4.100.15.5.zip HOPE IT HELPS AND GOD BLESS!