navigami

First: my english is not very good so sorry for the bad things I mabey write wrong.
I have downloaded al things that have been asked. Navigami.jar on my mobile and comproxy + rxtxSerial.dll to my pc. when I start navigami I see a ^ and with screen. I have read that I must download the maps by proxy ore bluetooth. I don't know how proxy thing works and what I need to put into http but you can also use bluetooth so I choose that way. I have Java 1.6 bdw. So I go to Settings>>Network and then I see proxy. under that an O Enable and there under http X enable. I click on proxy and then on bluetooth. I click on Search. Please wait... nothing.
I have also Cable. but I don't know what I must do with it. but also in maps>>manage maps>> than there is coming a gray screen with a red . in it and there's an compas with and a km screen. I go to Settings and show screen and things. the I click on download map. Than there is coming a internet thing. I can choose Orange ISP GPRS. Orange MMS. Orange Netherlands. Orange World. but nothing works. I can't get acces ore somthing. and there is coming {Can't load map:- 36). I hope giving enouch information because I really like free gps on mobile and if it works it would be so great. I know this message is long but if other poeple have the same problem that it will be done with this. I am from Holland bdw. and just still learning on school. Mabey this are really easy question what I hope but I have read so much on forum like 5 ours but I can't get the good maps. PLEASE HELP!!! would be really nice. and if it don't work whel than I have tried my best to get it on my NOKIA N73. Not the music edition bdw.