NOT updating tax field

hello friends,

When I am entering tax value at line item level manually in an order , the same tax amount is not reflecting at tax field in the above and below net amount, can u suggest solution?

please clarify my doubt.

and one more doubt I have three taxes TOT, VAT,Octroi

and those three condition types should reflect in pricing procedure and I have to include all three taxes and I should single tax value.

please clarify my doubts.

regards,

Sekhar_Functional Consultant.