The Asus 55u router I have for review had profiles for Sky, but both failed to work.
Then looked at settings in the Sky modem and it was just pppoa 0/38 VCMux, but did need to clone the WAN MAC address too.
Interesting. To use PPPoA you just need your ID/password extracted/generated from a sky router and feed those into any router with 0/38 VCmux set.
To use MER you need a special modified DHCP client which issues the userid & password request in the client-ID field (DHCP option 61) which the majority of routers don't have support for in their user interface. You set the router into IPoA mode (RFC something) similar to O2/BE. Some netgears can be telnetted in and issue the dhcp command manually.
SkyUser forum has more on this - and its how Billion and Draytek have issued beta firmware's for Sky users on MER.
James BT Infinity 2 - 19/9/2012 - Install-sync: 52/12 - Test: 50/10 - Est: 44.6/6.5 Mbps
13 years of broadband - ntl:(512k/1M)/BTbusiness(2M)/Metronet(2M)/Bulldog(8M/16M)/BE(16M)/BT FTTC(50M)