Tam - the link from MGAS's post is still working fine for me (and assuming you clicked specifically on the link for the song and ale, not the October main festival, not sure why you're having problems).

The location is the Drayton golf club. Tickets cost £15 for the weekend and camping (outdoor only) is free. The guests are always a surprise - the main format is singarounds, incorporating guest spots.

Hope you can make it!

Kitty