how to download apk files from android market to pc?
Probably this will help you.
http://techdroid.kbeanie.com/2009/11/android-market-on-emulator.html
Once you get access to android market from emulator you can probably get .apk from ddms
Yes , You'll need the latest version of Chrome with SSL error notifications disabled, then you supply your device ID, email address and password (all stored locally on your computer to grab the Android Market cookie).
To anyone still need it , you can get it here : http://apps.evozi.com/apk-downloader/
You can download all your installed apps. from mobile to SD Card. You just need to install an android application appInstaller...You just need to backup all your applications. This software generates apk files and stores in the SD card..And then you can store it in your pc..