well my friend latex or more precisly tx is a document formating system its nit a wyswyg editor but more of a markup one.
I can only tell you that Open Office now includes the optin to export to La(TeX), on the other hand all linuxes and most unixes have a version of latex or tex included but it's a dificult language to learn.
Added after 2 minutes:
Well using a latex class usualy means calling the tex or latex binary with that class,well not sure too, try to it with open office.