I have set up my blog in the following way:

Home Page: One, full, Post per Page, excerpts on Category, Archive and Tag pages.

Now only one excerpt shows up on those pages ;-( Is there any possibility to change the settings to:

Home Page: One, full, Post per Page.

10 excerpts on Category, Archive and Tag pages?

Thanks, SY

You can put a query_posts code http://codex.wordpress.org/Template_Tags/query_posts into Style & edit CENTER COLUMN -> Content ABOVE the LOOP, wrapped into a conditional tag http://codex.wordpress.org/Conditional_Tags

<?php if ( is_front_page() ) {
query_posts('query_posts('showposts=5');
} ?>

Flynn, that sounds great but I have not the slightest idea what you actually mean. Would you mind to break it a bit down in bite size bits? Ich bin nicht mehr die Juengste ;-) SY

Put this

<?php if ( is_front_page() ) {
query_posts($query_string . 'showposts=1');
} ?>

into the text area at Style & edit CENTER COLUMN -> Content ABOVE the LOOP

I checked both, the theme editor and the Atahualpa theme options and can't for the life of me see where "the text area at Style & edit CENTER COLUMN -> Content ABOVE the LOOP" is??? Am I blind? SY

You probably have an older version of Atahualpa. Put the code into index.php, after <?php get_header(); ?>