I have been told to design a site but first, i should write a proposal. Pls i need ur assistance as this is my first commercial site.
A proposal is a great way to get your head around what needs to be done.
Start by meeting with the client and getting an idea of what it is they want ie colour schemes, general layouts, what sites they like and you can possibly base your design on. Ask as many questions as possible when you are with the client, and make sure that all people involved in this design are there. Differing opionions are the bane of your life.
Do a rough sketch of what the site should look like and this will help with building the initial templates.
Make site maps to show how it will be laid out. This will help you figure out how many pages you will need, and what kind of menu structure you will follow.
Remember this is just a proposal. You can make changes to it as you design, just make sure you keep your client in the loop.
hope that helps