Sorry OP, but it's horrible to read your posts due to the flood of spelling errors. I understand that english is not your first language, but guess what so isn't mine. You clearly don't make any effort to get the spelling right even though so many free tools are available on the internet.

Secondly, if you are not comfortable with the N900 and Maemo you shouldn't really install something like nitroid, it's a little advanced for a newbie. Anyway before you start you should already be familiar with the command line, know how to reflash in case you need to start over...