the chinese chamber of commerce can help you with that.
they have a course to learn mandarin from official teachers.
a bit pricey though...
may I recommend that you use a flashcard software to help you in learning mandarin?
before you know it seems pretty good. The lite version is free

now you can go for "my chinese flash card" or "memory lifter"
check these out on google. that's worth it
good luck
Zai jian
