Yes…first of all I would like to know if that ID is from the UK and Ireland servers. The UK messenger users are no longer allowed to access user created rooms and adult profiles. To get around this you can do one of two things…
1. Install the US version of messenger ( see this page for more info http://www.doc-rocks-dungeon.com/chathelp7.htm )
2. You can also access these rooms and profiles if you have created your Yahoo ID at http://profiles.yahoo.com and not the co.uk counterpart.
Either of these will correct the problem.