Work order format / Purchase order format for web application project needed?

Question by Abhay: Work order format / Purchase order format for web application project needed?
I have primarily accepted a php + apache + mysql web application development proposal, and we are entering the contract. Where can I get a good format for a work order or purchase order? I have seen the stand alone application purchase order, but I suppose there must be some additional things mentioned in a web application development work order / purchase order.

Anybody experienced around?
Thanking you all in advance,
— Abhay.

Best answer:

Answer by Patrick T
I would highly recommend that you write up a project requirements document and stipulate that once the requirements are agreed to those are what you are held to. Otherwise you will start to experience scope creep and that can become a huge nightmare.

As for a template this one seems useful:
http://readyset.tigris.org/

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