I can make torrent file with Bitlord or any u-torrent etc softwares
but the problem is how i register or use tracker ?

help in detail thanks in advance

after create torrent file u have to open new thread in appropriate forum & u have to upload your torrent. there you have to do copy paste the tracker (at bottom dc home page).check-
http://www.dctorrent.com/showthread.php?t=21222

hmm if u know how to create torrent then u must know u have to put tracker in it.

as far as dc tracker is concerned go to main page scroll at the bottom
and in " wats going on " section u will find tracker.

put tracker in torrent and create it.

as far as registering torrent its no big deal.

create thread in the appropriate section to which the data u will be uploading will belong

go in manage attachments upload ur torrent there

now download the torrent from the thread u have created and open in torrent client.

and its done.

u just need to upload the torrent on dc to get it registered and obviously the torrent which is dc it will be considered registered.
so download torrent from here b4 u start seeding it else u will always get "unregistered torrent " error.