BE 2012 Cannot Load Old Backup's

Greetings,

I am having an issue when I am trying to restore an older Exchange backup, when in the restore wizard, I browse to the date range I need, but from a certain date and back, the restore dates all have a Yellow Triange on them and when I select the date, there is no Database to display on the right panel.

Do I need to update the Catalog to be able to go back to that old of a date?  If so how would I do that as I cannot find a way to enable the 'Catalog' button.

Any help would be great.

Thanks in advance.