No. You may use any government-issued ID as long as the name on the identification is the same as your exam paperwork.
No. The Board will not forward any mail. You must also notify the Board of your change of address.
Unfortunately, there is not an official time frame for receiving a test date and the Board will not commit to a specific period of time after they receive your application. Therefore, be patient, and most importantly, be prepared to take your exam as soon as you apply.
Yes, you should receive a letter of admission confirming your exam date and time. If you have not received this letter but already have a pre-app date, notify your school so that they may contact the board directly.