1. You won't find anything mentioning ILE specfically on most sites, as it is a concession (not built into the immigration rules.) If you were expecting to get the concession, you'd just apply for a normal spouse visa and ILE would be granted automatically once the ECO's saw how long you've been married.
HOWEVER....
2. The ILE concession for long-term partners is being eliminated, as of 2 April 2007 (rule change was announced about a month and a half ago.) If your visa application is processed after April 2, then you will not get ILE and will get the regular 2-year spousal visa, regardless of how long you've been married/living together. So depending on when you're planning to move, you might not even have to worry about it.