yeah the 8096 seems to indicate a 8meg cap. Still a bit low for your attenuation but that just goes to show attenuation isnt the be all and end all of what you will get only a rough idea. Your line probably has a bit more noise on it then the average line with the same attenuation.
It probably isnt adsl max and I think it is actually adsl2+ but capped as the other guy noticed your reported attenuation went up which is common with adsl2+ over adsl. Your router should be able to tell you if you using adsl or adsl+. If you are on adsl max tho then sky may charge you as I am fairly sure their prices are only lower for their LLU areas, and adsl max would indicate you not on LLU, also if its adsl max it explains why your speeds havent gone up as BT operate a poor BRAS rate limiting mechanism that keeps you throttled for 3 days after the increase in synch speed and if the synch speed remains stable it will then increase the rate limit.
You already found the links yourself to ring wire websites so I guess you dont need to know what to do next.
remember also
http://yarwell.blogspot.com/2005_08_...l_archive.html linked from the website you mentioned.