im obviously new to wordpress so dont use any crazy lingo :)
anyways, i managed to delete the tab that brings you back to the main page from elsewhere in the site. i can get back to this main blog page by clicking the title, but this might be a problem for some users.
now when i change to a different theme, the home tab is back where it should be.
i also created a new home page, but it isnt linked to the main blog page.