problem with the sidebars

hy again, i´ve a little problem with the sidebars. Each Page, like Post, Blog and Archive? have their one unique Sidebar, is that right? and for all others we have otpional 1-3 sidebars. ok. so my problem is, that i want the same sidebar for Post, Blog and Archive. they have a default one, or i can choose between optional sidbar 1-3. But no i did a new sidebar for optional sidebar one to activate this on each Page in Sidebar Options. But nothing changes. Is the default sidebar always active? and no possibility to choose e.g. optional sidebar one? it´s a little bit wierd... maybe there´s a easy way, but i don´t know.. thanks seb