There is now an option to filter players on when they last updated their skills here. Currently the options are set to 30 days, 6 months or forever, but we are open to suggestions.
Please report errors, and submit new ideas via mail.
To appear on the top 10 tables, you have to import the output of 'score', you can do that here. The imported value is valid for 90 days, after that you idle off the table unless you import your score again. These tables are based purely on rating.