How do I upload a picture?
You can easily edit/extend your profile by clicking on "my site" -> "edit your profile". And you can upload up to 8 pictures by clicking on album on this site.
Why doesn't "show more" fit to "people that took a look at your profile" on "my site"?
Only up to 24 registered profiles will be shown in your last-visitor-list. The total number includes non-registered visitors and users that set themselves to hidden status.