After waiting for Apple to release their iOS 5 User Manual Guide, now redsn0w team already make a dirty Guide how to Upgrade Apple iOS 5 from redsn0w. Now this is the step by step guide instruction to upgrade to Apple iOS 5

Step 1 is install iTunes 10.5 beta for Mac for Windows 32 bit and for Windows 64 bit.

Step 2 is download firmware iOS 5 that suite with your device. Apple iPad 2 user can download here (WiFi, CDMA, GSM). Apple iPad 1 user can download here. iPhone 3GS can download here. iPhone 4G user can download here (CDMA, GSM). iPod 3G user can download here. iPod 4G user can download here.

And Step 3 after you install iTunes 10.5 beta, open and restore your Apple iOS 5 Firmware that already downloaded and suite for your device.

For user who want to activate without Developer Account for Activate iOS 5 please follow instruction below :
1. Triple click the home button. This will activate the Voice Over.
2. Triple click the home button and Emergency Call will appear.
3. Click on Emergency Call and, while it’s switching, swipe with your three fingers down.
4. The Notification Center will appear!
5. Click on the Weather widget. The Weather app will load.
6. Click on the home button to exit to the iPhone’s springboard.