Capture dynamic WAN IP changes and post on website

Two parts: 1. The web-site (running on linux) should manage a usernames and password, so one page to login. 2. A database with usernames and pwd and match them and produce errors. 3. User shud login, than the web-site will speak their last WAN IP address. For this a different database (or table) with the username and IP address mentioned (this is updated by the program below) 4. User should log-out. Application 1. This app will work in windows OS and monitor the dynamic WAN IP given by the ISP ([login to view URL] ip assigned to router with pcs behind having private internal ips) 2. User shd be able to select how they want to be informed of the WAN IP changes..either via email (their own emial client) or by checking the above website 3. app should user friendly, requires no plugins (if possible) and not cpu/memory intensive 4. app should have a help file Pls let me know how you are going to do it (in what lang), the merits of your method, the time needed. If you got any suggestions, feel free to let me know. Thank you rgds cy ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Windows 98 and above IE 3.0+ and above all major email clients - outlook, outlook express, eudora etc