table behind tax details in P.O

Hi,

im trying to find the tax condition types in a purchase order by going to item detail(invoice tab) ->taxes button and it displays the taxes .

i'm unable to find the table where the tax conditon type , amount and the conditon value are being stored, though it shows komv and refers to konv. i checked and the tax details are not stored in KONV.

Can some one help me out on how to retrieve the tax amounts?

Regards,

ravi.