[Mediawiki-l] beginning

[sa]

hello,

i'm beginning to use mediwiki, it's a cool product, and i have two simple
questions about:

1. i have three block on my left side (navigation, search and toolbox). how
could i modify/add custom blocks?
2. in navigation block e.g. i have some links (main page, community portal,
ect ect...). how could i modify/add/delete that ?

i'm looking for in documentation and faq section but nothing for now :)

could u suggest me links, tutorial or howto's ?

tnx a lot

sa