I've just googled "Relook_QuickStart_Guide.pdf" and as well as this page and a couple of other links the original pdf is listed and still cached as html!!
I've looked for it before without success - I'm sure it wasn't on google last time I looked! So in case it goes again here's the information:
Relook QuickStart Guide
USB Cable Installation Method
1. Turn the power switch off on the back of the Relook.
2. Connect your Relook to your PC with the supplied USB cable.
3. Hold down the Power button on the front of the Relook and flip
the power switch on the back of the Relook to the On position.
4. It will say USB Upgrade.
5. The first time you do this the PC will detect the new hardware
and ask you for a driver. Browse to the folder where you
unzipped your FlashTools and select VESTAUSB file and let
Windows install.
6. Start FlashTools.
7. Click on the USB button beside the SERIAL button.
8. Click on File and browse to the usb_kernel_root file and
double click on it.
9. The Message window will say that the file is selected and you
can click on Down to begin the download.
10. Click on File and browse to the usb_db file and double click on
it.
11. The Message window will say that the file is selected and you
can click on Down to begin the download.
12. When completed, turn off the Relook and unplug everything.
Network Installation Method
1. Go the Menu of your receiver.
2. Go to the About page.
3. Scroll down to Network Update and press OK.
4. Press the Green button to Add Server.
5. Enter Server address: www.dgniceguy.org
6. Enter Directory: /400/
7. Enter User: dgniceguy-anon
8. Enter Password: anon
9. Scroll down to Update and press OK.
10. Select the update that you want by following the prompts. Select
the Application, Database, or the file with both.