You best bet is to use the Windows Vista drivers that are made available by the Acer support site. Most of the time, Vista drivers will work just fine in Windows 7. If they don't you can try installing them in compatibility mode (Right Click Installer, Properties, Compatibility, etc) 32-BIT Vista Drivers Chipset - Intel Audio - Realtek Bluetooth - Broadcom Camera - Bison Camera - Logitech Camera - Suyin Card Reader - ENE FIR - SMSC
You may also need to find LAN drivers if your network card isn't supported by Windows 7 automatically. The ones below are for Windows XP, I highly suggest that you attempt to find Broadcom drivers that work for Vista or 7. Broadcom Lan Drivers (v22.214.171.124)
There are no 64-BIT drivers supplied on the website.