Cannot access time machine backup in Tiger

I have 10.4.11 installed and have some time machine backups from a leopard system on one of my externals. When I try to navigate to one of the backups and get into any of the user folders like documents, pictures, etc it says I don't have permission to access them? Yet I check the permissions and they are read/write.

Anyone know if there is a way to access these files?

 

Thanks, I had a feeling that was the case.