Ok...
I've download the version 3 and 4 (the last one by simply changing the last C to a D, regretfully the A and B didn't work). You can find them at:
USB adapter V3
USB adapter V4
router V3
router V4
The board of the router has another colour, but I see the same Ralink chipset (RT2820L)...
I have just bought the Belkin F5d8233-4 V3 router and F5d8053 USB adapter combi pack second hand.
At http://www.smallnetbuilder.com/content/view/30230/100/1/2/ I read that sometimes there is a complete redesign between hardware versions with different chipsets. Is that also the case with the...
Ive bought the 855 but I found the wireless performance not impressive. I send it back and instead I bought the Buffalo WZR-HP-G300NH router for Wireless G and second hand the Belkin f5d8233-4 router for Wireless N!