I need code for a program that when a user puts in a message using a text box named txt1 the message is displayed in coded form.

Here is the program discription:

To produce the codded words, convert each letter in the original message to it's corosponding ASCII code number, add 2 to the code number, then convert back to characters to produce the message. Keep all spaces between the words in their original places and relize that the letters "Y" and "Z" are converted to A and B. Note: The user should be able to enter all lowercase and uppercase letters but the code should print out all uppercase letters.

I am so lost and confused so if you understand this please help.

Thanks