Hello could any help me with a new map for this device and a guide to install it !
I have installed the unlock for N40i, its installed in the folder called program files
on the device, but I dont know how to use it?
I need a Western and Central Europe map but I cant see any maps for N40i navman,
which map will work with it. could I install the map on a memory card?

Contradictory: You unlocked a Navman N40i and need maps for a Navman N40i. Or you did not unlock and need Navman maps. Or you did unlock and .. what?
When you unlocked, did you replace the navigation software? With? Because then you need maps for that software.

No I did not replace anything I just plugged the device to my pc usb then i ran the navman_n40i_unlock setup exe, after doing that
I can see in the root of the device is a folder named program files and in that folder there is 2 more folders called navman and a folder called unlock should i delete the navman folder?
How do I proceed from here?

Don't delete anything, put a copy of igo on an sd card and set up an icon to point to it from the desktop

What igo version and map would you suggest i use?

Where are you at on the device now, if you reboot do you see the blue desktop?

yes the normal blue desktop

http://www.navitotal.com/showthread.php?8169-Run-iGO-Primo-2.0-on-Mio-Moov-and-Navman-S-series-(and-some-F-series)-in-ten-steps.

Top of this page is a minimal build of iGO 8, start with that, some parts of the guide will be valid for your device.

its install correct so i will read your post