I was at the Reading Festival in 2004 but the ticket I got for the weekend there was a lot more clear about what it entitled me to.
The ticket I received from my friend doesn't mention camping on it at all, but it is for Fri-Sun. It also says 'NOT VALID FOR ENTRY B4 8AM FRIDAY'. Am I right in assuming this is only in regard to the main arena, or that it also applies to the camping facilities? It's a full-value £145 ticket.
It's a typical Mean Fiddler ticket; the Reading one I got 3 years ago actually looked the part. It's definitely official.