Hi,
Here's some checklist about meta tags..
- The header sections of each page should be different.
- Each header section contains instances of the main keyword for the site, and the main keyword for the page
- Page Title is different on each page
- Main Keyword field is different on each page
- Meta Description is short and concise; it includes main keyword at least twice and other objective keywords at least once
- Meta Keywords are different on each page