Troubles with templates

Yesterady I installed Elgg v1.6.1, with success.

I noticed, anyway, that under folder "mod", no folder "template" was created. I also found that, once logged as administrator, under "settings" menu no option about "template" was created.

I downloaded a couple of templates just to make some tests. I created, under "mod", folders template/templates and put in the downloaded template's folders.

Back in admin, I found under tools a new tool (template), but when I activated it, I got "misconfigured plugin" error...

So, could you give me some help about template management, please?

Must folders "mod/template/templates" be created after installation? Where is stored default template?

Thanks for your kind attention.