In latex + book/memoir + hyperref, if \frontmatter \mainmatter are used, the pdf files generated use the roman numbers in the pdf itself. It appears as ii (2 of 500) in the pdfviewer. Is it possible to do the same with ConTeXt?

Is there any introduction to using fonts(typefaces) in ConTeXt? I find myself stumbling on simple things(I'm a beginner). For example, the following works fine.

\usetypescriptfile[type-gyr]
\usetypescript[palatino]
\setupbodyfont[palatino,11pt]

but the following does not work.

\usetypescriptfile[type-gyr]
\usetypescript[schoolbook][ec]
\setupbodyfont[schoolbook,11pt]

I have tried with and older distribution of ConTeXt which comes along with Fedora 10 as well as with ConTeXt minimals. Incidentally if I use \definetypeface[schola][rm][serif][schola][default][encoding=t5] it works fine. What am I doing wrong?

Regards,
Derek