Here's another good resource for cloth simulation information containing links to other resources.

www.poserfashion.net/About%20cloth%20simulation.htm

If you are still having trouble making your model PM me with specs to your project with a detailed description of the issues and I'll try to clear up the specific problem spots for you so you can make some progress.

Even though the model is basic I do recommend completing the *Simple Modeling in Blender * tutorial as it will familiarize you with the tools. The more complex clothing is just an expansion of the basic techniques covered in the text.