After updating to Markettpress 3.0

After updating to Marketpress 3.0 a lot of things goes wrong.
Ok, this is a major updat with a total new structure.
- can not select my own theme (wp-content/marketpress-styles)
- can also not select an other theme then default.
- single product page is a mess an the featured picture is gone
- In checkout I see shipping and tax. I don't use that only digital products.
- paypal express gateway is gone.
You can see the differences:
http:// site with marketpress 3,0
http:// site with marketpress

By the way I have to deactivate the WPMUDEV dashboard to see or I have a new version of the plugins