Lucene Query Writing question

[Dan Katz]

I apologize if sending this to the wrong place, but I need some help writing some lucene queries.  I am not the Lucene manager here at our company.  Just a lowly unsophisticated user who would be appreciative of any help that can be provided.   Question 1)   Is there a way in Lucene to have some sort of limit based on term count.  For example,  "atleast5 Apple" to find items with the word apple only when it has at least 5 mentions.   Question 2) We use Lucene to index articles from Web sites. When I have these documents I want to find when a Web site is mentioned, but not the email addresses of a Web site.   I write something like "website.com NOT [EMAIL PROTECTED]".  This works to a point.  However, it also excludes the documents when the website.com AND the @website.com is mentioned.  I want to eliminate the content that only has @website.com but keep it whenever the @ is not present.  Does anyone know how I would write this query?   Again, I apologize if sending this to the wrong place and would be thankful for any help I can get.   Dan Katz Cymfony