TinyMCE is part of WordPress since 2.0 but as it can be higly configured the guys at WP decided to slim it down.
I too miss a few things like un/ordered lists and a few others always visible in the menu but...
Point your browser URL to
and you will get more help on using the hidden WordPress's TinyMCE options.
I advise you to ask that friend of yours to give you an hand in costumizing TinyMCE in your WP installation if you really need so.
Samples at http://tinymce.moxiecode.com/example_full.php?example=true
Info on that, since it is just a TinyMCE thing, can be read at http://tinymce.moxiecode.com/tinymce/docs/
Hope it helps.