Just so people know who continue to post on this thread. It's now very old and archived and so, it's no longer visible on the list of currently active threads.
Also, this place doesn't work the same way that a chat room does. New questions need to be asked by starting new threads. If you have a separate question that you would like to get noticed the most, then it would be best to start a new thread.
For information about writing business letters of various kinds, there's lots of information that can be found by clicking on the following links. If you post a draft of a letter that you would like to write, and do so on a new thread, without putting any contact information in it, I'm sure that there will be those of us who'll be willing to come along and suggest to you ways that you might make improvements to it.
Writing Guide: Business Letters (http://writing.colostate.edu/guides/documents/business_writing/business_letter/)
How to Write a Formal Business Letter | eHow.com (http://www.ehow.com/how_1370_write-formal-business.html)
How to Write a Business Letter - MonkeySee (http://www.monkeysee.com/play/9611-how-to-write-a-business-letter)
How to Write a Business Letter That Gets Results - Stepcase Lifehack (http://www.lifehack.org/articles/communication/how-to-write-a-business-letter-that-gets-results.html)
Business Letter of Introduction - LoveToKnow Business (http://business.lovetoknow.com/wiki/Business_Letter_of_Introduction)
Idea Cafe Small Business Archive: "Company introduction letter" (http://www.businessownersideacafe.com/cyberschmooz/marketingmix/3612.html)
Business Letter Writing Basics (http://esl.about.com/cs/onthejobenglish/a/a_basbletter.htm)
Business Letter Writing Basics - Cover Letters for Job Interviewing (http://esl.about.com/od/writingintermediate/a/w_cover.htm)
How to Write a Business Letter | eHow.com (http://www.ehow.com/how_2045033_write-business-letter.html)
How to Write a Cover Letter and Resume: Format, Template, Sample and Examples (http://www.thejobexplorer.com/Cover_Letter/)
cover letters - introductory letters examples and templates for sales introduction letters and inventions ideas submissions (http://www.businessballs.com/introletters.htm)
Business Introduction Letter (http://www.businessplanmaster.com/business-introduction-letter.html)
Business Letter of Introduction (http://www.writing-business-letters.com/business-letter-of-introduction.html)