date formula/acc. schedule column layout

paszigor

Hi All,
I am trying to create an account schedule with following columns:

1. current period (chosen in period length options/date filter) less 1 year. I.e. if current period (dd/mm/yy)= 010509..310509 I would like to see 010508..310508, if current period = 210909..270909 (Week) I would like to see similar week in 2008

2. beginning of accounting period until workdate, i.e. 010409..260909

3. As in point 2 but in previous year 010408..260908

Can you help me what date formulas enable this? Is there any chance to do that without dev mod?

Thanks in advance.

Cheers,
Igor