Actually i have already installed the membership plugin, bit I have some special requirements that I would ask you to help me configure.
And then I would ask you to help me uninstall the simple shoppingcart I have already - probably i can just deactivate it ? - but also to help me install and configure your marketprrss plugin. I have actually tried this my self at an earlier occasion - but couldnt get it to work properly.
I would add that I do not have a lot of tecnical knowledge/experience. I have made the site my self until now. But need help for the last features.