Please Help!!!- with an empty web site small task

Hello everyone,
I need to create a new empty web site project with visual studio and create a form page with the following fields:
serial number
first name
last name
e-mail address (with regular expression validator)
phone number
Until here i know how to do...but than i need to:
pass the parameters that has been received to the following web function: https://dextertest.eset.com/Dexterdev/Services/serialnumberservice.asmx?op=RegisterSerialNumberNewLicence and in addition, the following parameters as well: an empty string for the parameters: companyName, note, and
the value 39 for countryId parameter.
if the error that has returned==0, it is needed to save the follwing data in a database and present them:
User Name
Password
expiry date
price< ...