Sorry first question What OS are you trying to access from? There is not a 64Bit ADB. You need to d/l the adb from Archos ftp://support.archos.com/ You can use the Archos 5 Android version.
If you have Win 7 or Vista, you have to mod the .inf file. I have forgotten it config off the top of my head. But you cannot use the default Google ADB.