site problems to fix and design

problems to be fixed as the following. 1) no following problems occur Bandwidth Limit Exceeded The server is temporarily unable to service your request due to the site owner reaching his/her bandwidth limit. Please try again later. ------------------------------------------------------------------------ -- ------ Apache/1.3.33 Server at www.---- Port 80 2) people cannot steal my customer data/ personal info 3) the system recognize that when a customer insert the email address,make sure is using the correct email instead of fraud or invalid email 4) make a client make a payment , the system recognize to point the specific years of payment methods , however , the clients are still able to change to different length of years of services if they desired 5) when a person get to my site and not able to get back to other people site 6) reminder letter/ newsletter needed for remind my clients from date to date 7) tracking customer coming from 8) automatic reply letter needed when a client pay the a/c. 9) knowing which keywords clients is buying. 10) block from certain user 11) track competitor id, country 12) track client ip and country 13) when a client send an email to me, all the email belong to same persom will automatically move to the specific client a/c. 14) track the system where the traffic coming from? for example from the following: banner for msn banner from yahoo banner from google ppc for overture ppc from google ppc for aol opt in ads classicfic ads organic search engine and etc 15) system will inform u and me when "error 404 or breakdown happen 16) under the system of payment, if the same ip address buy different buyer. how is the system going to recognize. for example, if A had assign a purchase number of 123 with the total amount of 100 usd. but, she left the computer. and B, make the same purchase with u company with the total amount of 50 dollar. is the system can recognize the buyer between A AND B if both of them did not log in and log out for buying from the site. 17) technical support needed when some technical problems occur for 6 months to 1 yr for free 18) able to change graphic, writing text, wording for the site for 6 months to 1 yr for free . 19) able to add the additional pages for the site later when needed **advise needed for the following for improvement 1) on site to asp or Javascript or any others as suggest. 2) besides, advise needed on Database: and Operating system: 3) graphic restructure, relocation or fix