mercmullis, my understanding is different. In fact you could have applied for BC straight after you obtained your ILR due to the fact that you were present in the UK for 3 years and beyond.
so first of all, if i were you i would put down the 2005 date as the one which shows you were in the UK. also for the addresses, it doesn't matter that you were out of the country for a while....put down your UK addresses for the past 5 years (it only helps to show u meet the residence requirements).
I see you went home for your spouse visa but at long as the stay did not extend between the 270 day requirement, you more than meet the requirements. I was in the same soup cos i had to go back home for spouse visa and it took over 3 months, but as it was still within the residence requirement, it was fine for me to apply.
also i was told by a lawyer and the ho cust serv that you have to put down the address for 5 years not 3 years because that is what the requirement is (despite being married to a BC). i put down my home country address where i lived 5 years ago.
This requirement for 5 years is different for the SET (m) which requires u put down addresses for the past 2 years only.
so there you go.....you decide what to do....and oh i copied this from Jumbo faq which might help you decide:
http://www.immigrationboards.com/viewtopic.php?t=95747
Q1: I was just granted ILR, when can I apply?
If not married to BC, the standard requirements need to be met. This includes holding ILR for at least 12 months before applying.
If married to a BC, you can apply the same day you are granted ILR if you meet the spouse requirements which includes 3 years residence. Any legal stay in the UK counts.
An important requirement you should pay attention to is that you need to have been physically present in the UK at the beginning of the 3/5 years residence period i.e. the day the HO receives your application 3/5 years back. This is a pass/fail test and the HO has no discretion with this requirement.