I've been working on a Facebook app and the only thing that's still bogging me down is the friend requests.
When I use the fb:multi-friend-selector code, the confirmation pop-up gets cut off by the iframe on the right hand side. The app is an iframe-based canvas app.
Any ideas?
You can specify a width attribute on the <fb:serverfbml>
tag to make it wide enough:
<fb:serverfbml width="615">
<script type="text/fbml">
<fb:request-form ...></fb:request-form>
</script>
</fb:serverfbml>
Example: http://fbrell.com/xfbml/fb:server-fbml-multi-friend-selector
EDIT: Made it more of an answer.