Wiki Plugin Customization


I just installed a wiki plugin, but its not styled as I want. Now the wiki items are shown as posts. But I would like to have a page with a list of wiki items in it, just the titles. I cannot use css for that, since it will affect my post appearance and I dont want that. So I was wondering, what would be the best way to customize the appearance of the wiki page? I also want to add a button or a link, on this page, with the possibility to add new wiki item (now it appears only within existing wiki item).

Thank you!