As the other poster says its probably a case of you not having installed FAX (find it on the CD or at the Forum Nokia website - a more recent version depending on when you bought your 9210 and the firmware version). If you have installed it try reinstalling.
and dont worry about being inexperienced this forum is for the beginners just as much as any experts that might exist.
Remember: The search command is your friend.
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Phone Orange Cust Service, and when they answer 3 hours later, tell them you need a fax and data number for your nokia 9000 - yes I said 9000 as if you tell them 9210 they will tell you it's not supported. You will then get a fax number for people to fax you on.