The structure of your code would suggest that your chances of being recognised as a developer are practically zero.
You have many functions encapsulated in a single method. Split your Method into smaller methods that can be tested.
You are manually searching linear arrays. Itr would be simpler to put those arrays in a dictionary and use the .Exists method (or an ArrayList and use the '.Contains' method.
You don't provide any test methods for your code so maintenenance is going to be an issue.