Hello there Jean!
I was somewhat confused with your question but after reading it a few times I think I get what you are asking. In reading the terms of the tickets as shown below:
No more than twelve (12) Disney 4-Day Military Promotional Tickets may be purchased, activated and/or used by any Eligible Service Member or spouse during the life of this promotion, and no Eligible Service Member or spouse may purchase, activate and/or use more than six (6) Disney 4-Day Military Promotional Tickets during any single week of the promotion. One (1) of the Disney 4-Day Military Promotional Tickets purchased on each occasion must be for use by the Eligible Service Member or spouse. This offer is for active or retired members of the U.S. military, including the National Guard, Reservists and the U.S. Coast Guard.
I can understand how you may be wondering how you can use them if you are staying for longer than four days and during different days of the week. Lets say, you are going to be there for six days, when you arrive you can pick up the tickets. Then, you can use the tickets at anytime during your stay. Whether you want to go the first day then skip a day it's up to you. The only limitation is that you can only use them until September 30, 2012 and there are certain black out dates which do not pertain to you since you are going in February. I must add that the option to upgrade the tickets to the Park Hopper and Water Parks Fun and More option is a very good bargain so you may want to look at that as well.
Disney's week is by a seven day period and you can only use six tickets during that time. So six family members can participate in the fun during that week. I hope this information helps you out and you have a Magical Stay at the Walt Disney World Resort! Thanks for asking the Moms Panel! If you have more questions, we are always here to help!