Hi,
OK Looking at the first bit it looks as though you're on Sky Connect, connecting via BT's equipment, and were originally put on their legacy 256kbps service.
Your service is currently slow as BT operate a 2 level capping system, where your download speed is obviously limited by the sync rate you can achieve with the exchange, which is in your case now 8096, but also by a router in BT's network.
BT have some kit which monitors your line and will (eventually) increase the cap that that router is placing on your line, which is at the moment 250kbps.
This excellent web page will explain things more clearly:
http://www.kitz.co.uk/adsl/maxdsl2.htm