[SlashDot]

Hello there. i am using F1 theme for my portal. Along with the F1 theme were this block : block-fisubsilversh-Forums.php which gives preview of the forums latest topics on the index page. But by default it shows only 5 topics. and the newer topics take time to be shown in the preview pane. How do i increase the number of topics shown and the refresh time as well so that more newer topics will be shown right away?
Please help!!