Motorola V323 / V325 / V323i / V325i

Thanks for posting your reviews on the navigator function. When trying to decide if I should buy this phone, I found very little information from users who had actually used it. My question for you all is if I have to actually subscribe to this feature in order to download it and look at the settings? I went to the FAQ section last night and followed the instructions, but the only option I have is to subscribe to it, there isn't a option to just download the feature. The reason is that I may not need to use this for quite a while, but I would like to know how to use it before I shell out that three dollars and be busy with where I am going!