Hi, I am new, but I have problem with fonts and don't know what to do...

I need write in czech language (= ě,š,č,ř,ž,ý,á,*,é), but I can write only in english, because the czech symbols aren't shown correctly. Eg. Arial(black, CE, cursive ...) font, in Webstile - shown bad, in other programs, like Word, dreamweaver, frontpage shown good.

Can I some solve this problem?
Thanks