Conflict Marketpress with Events Manager Pro

Hello, I have been using Events Manager Pro (http://eventsmanagerpro.com/) for around 2 years. After switching from WP Ecommerce to Marketpress in April, I no longer have access to the menu items for Events Manager Pro from WP Admin. I can only see them when I disable Marketpress.

I did disable and test all other plugins and this is the only one that creates the problem. In addition there is one other plugin where the menu disappears as well but I never use it. With Events Manager Pro I add and change events a few times per week. This is becoming very tedious to disable or work my way around the issue.

Is there some way to make them both work together so I can access the admin menu for both? I can get around the code, but am not a real programmer to figure this out or make a hack for it.

Thanks