Check out Dan Stacey's myspace blog - he offers an explanation there.
or .... here it is, cut and pasted as follows:
Fans, supporters, advocates and anybody else that may be interested,
I regret to inform you that I am no longer with Seven Nations. It seems Kirk McLeod and myself have grown apart in our philosophies regarding my employment. After nine years with the lads, it is a little difficult to imagine working with other musicians but I am quite optimistic of what the future will bring to yours truly. Thanks for the countless cheers and the overwhelming loyalty you all have brought to this crazy fiddler. It will never be forgotten.
I'll be seeing you around,…..I've got new music in the works