the general consensus is that most if not all major search engines ignore the keywords meta tag. it is better to spend time making sure your title and description tags contain your keywords and are unique.
Go to www.submitexpress.com and go to free tools and then meta generator, fill out the info, check yes on both boxes below the info and you as the author, then go to your index.html or index.php and put your tag on top You will see your head start there and erase there usually non tag and replace it with your tag you just made, I would suggest doing that on all pages of your site. Any more help let me know. Claude