LJ S2 customization question

[ratcreature]

Like many others I've also resorted to hierarchical tagging (i.e. the "category: subcategory" kind of tag like "recs: sga") to circumvent LJ's stupid and deficient tag implementation that lacks a logical AND and is limited to display only a hundred entries per tag. And I've seen tag lists in the side bar ordered in a list style, like in the recsrainbow LJ, but somehow I can't find a tutorial that tells me how I can display my tags like that in my sidebar rather than as a cloud. I tried finding it in s2howto, but I didn't see a tutorial for such an indented tag list there. Does anyone have a link to a tutorial explaining what I need to do? I assume I'll need to paste something in my customization layer, but without a tutorial that is like figuring out a programming language with all the functions and such, and that seems undue effort for such a modest stylistic modification, since it's not like I want to create an entirely new style.