Donations are not the biggest part of election campaigns, there are not the kind of american war-chests. Existing parties get governmental contributions in proportion to their strength in the last election. The support of organisations (the unions support the Socialdemocratic party and the swedish companies association support the right bloc) does not much take the form of outright campaign contributions. It is more expressed by those organisations making their own campaigns and assisting with finding volonteers for the parties campaigns. And of course sympatetic press coverage.
Our campaign will be creative and cheap :) We probably will not have the money for big adds, but Internet is our home-field, and the file-sharing networks are just that. Networks.