How do you lay the ground work for a marketing plan? I have a plan outlined and everything, what are some of the first steps that I should take for laying out the ground work. I need to present this to a company in order to get the job permenantly, so I kinda need help.

So if anyone can help that would be great.

Make it as easy as possible for management to get the gist of your ideas. Prepare an executive summary. This quickly overviews your major assessments, goals, and recommendations. This will help management find your plan's major points quickly. Then insert a table of contents for the plan itself.
You might want to look at a direct marketing blog that might have some ideas you can use: word-jobber.blogspot.com.