you have to put the baseq3 folder just into your mydocs.connect your phone to your pc.then drop the folder into your n900.then make these steps but try to be root(type sudo gainroot in xterm)if nothing happens install rootsh from the repositorys.after that>

sudo gainroot

ls /home/user/.q3a/baseq3/


* In x-Terminal type the following to move the files to the hidden folder:

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mv /home/user/MyDocs/baseq3/* /home/user/.q3a/baseq3/


* In X-Terminal type the following (this should now show the *.pk3 files):

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ls /home/user/.q3a/baseq3/


then reboot your phone and it should work if not then just forget it