twittering on livejournal (is it possible?)

i tried inserting twitter in my lj, using the basic codes for flash and i think html? they don't seem to work. i tried putting them in a custom widget in my lj theme, which should go in the sidebar, since i don't want to mess with css. the widget whows up, but the flash object itself or the actual feeds don't show up at all. only the link that says "follow (username) on twitter" shows. what do i do?