Changing Form content specifications

Hello all.

I'm adding a Form Block but would like to edit certain elements to make them fit the local market here in Norway.

For example: Reduce the number of address lines, remove  areas like "Province" and "Country" , restructure the telephone field so it works with Norwegian numbers, rearrange date so it matches the Norwegian protocols etc.

I thought if I setting the site for Norwegian, this would happen automatically. Obviously not.

Any ideas how I can break in and fix it?

Cheers in advance, David.