help need about website scripting and linkage of 2 website

[thedonation]

1 - website 1 have databse of people and peopple search the data of birth manualy

step - 0 - submit first and last name and post code on website 1
step 1 - age found
step 2 - make year of birth with age found
step 3 - make manual search from 01 to 12 to find month
step 4 - make manual search from 01 to 31 to find days

all thsi human effort

so what i need is

linkage of a script that wil host on website 2 [coder created site] with website 1 and search all the steps i mentions above to reduce human effort .

any help or any tutorial plz