register the old asset in ECC

i want to register the old asset in ECC.

acquisition date : 2001.03.16

acquisition amount : 100,000.00

useful years : 20 years

current date : 2009.06.15

Depreciation amout : 50,000.00

2001.03 ~ 2008.12 : 40,000.00

2009.01 : 2,000.00

2009.02 : 2,000.00

2009.03 : 2,000.00

2009.04 : 2,000.00

2009.05 : 2,000.00

balance amount : 50,000.00

i want to post the Depreciation document from 2009.01

and the asset had been posted the depreciation amount - 40,000.00 2001.03 ~ 2008.12 - in ECC.

finally i want to post the Depreciation document via AFAB from 2009.06 by planned posting run.

i confuse the way.

do i use AS91 or AS01(post-capitalization) for the old asset??

thank you.