Simple Magento Form Change

I am looking for Magento Expert to do small changes to form where customers fill in there address, Name, Telephone etc.. information for shipping purpose. I need you to change the address filed into three fields. One big field with no limitation, one small field with name (Nummer). Same as the big field this field is obligated. and an another field with a name (Toevoeging) and this field must be optional. I also need you to restrict the postcode field to be max 6 characters. I will show a screen shot with exact changes highlighted to qualified bidders. If this goes well there will be lots of ongoing projects for you. HAPPY BIDING ## Deliverables 1) All deliverables will be considered "work made for hire" under U.S. Copyright law. Employer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the employer on the site per the worker's Worker Legal Agreement). 2) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 3) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Employer's environment--Deliverables must be installed by the Worker in ready-to-run condition in the Employer's environment. b) For all others including desktop software or software the employer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this project. ## Platform Php, Magneto, Mysql, PhpMyadmin