Tag+Clouds+and+Activity+on+your+Profile

Your personal tag cloud is here:

http://youthvoices.net/elgg/USERNAME/tags/ (which is a link -- tags -- under a users name)

For putting All activity onto the profile:

http://youthvoices.net/elgg/USERNAME/rss/ (which is the URL under the orange box right under a user's name)

You have to add this link to your own resources, then go to the widgets, and use the external RSS feeds widget ... and find USERNAME: Activity

choose 10?