I see a value in price of 3.50 for DRAW in game between Everton and Zenit. Away team will try to take at least a point in tonight game /their last game in group stage/ to secure a place in next stage in this tournament. They have an experience coach, who can set them in right way to achieve a success. According to what I have read, there are not important missing for them.
On other side Everton performed well in UEFA Cup and they can go through to next stage by earning a point in tonigh clash. They will want to do what is need to make it, before they go to AZ Alkmar in last day of this group. There will be changes in Everton's defence, if Howard and Yobo are not recover in time from injuries, as Phil Jagielka may play in defence and Stefan Wessels will deputize as a goalkeeper. But I feel confedent that it will not make them waker, as Wessels already started twice for Everton, conceded once against Man Untd and made a clean sheet against Aston Villa. Everton have weapons to prevent a loss as Arteta, Cahill, Johnson and Yakubu are all available for tonight clash.
(buy the way I remember Wessels' debut for Bayern in CL game against Rangers, where he made many tremedous saves, even that he was only 17 years old. If I'm not wrong he actually didn't have a profesional contract with them at that time) 
Everton vs Zenit @ DRAW 3.50 at general, 5/10