changing the dvd menu by adding new subtitles

[mapostolro]

hi there, i need some information about adding new subtitles at an old dvd and burn it again with the new menu, i think i have all the tools but i'm a little bit confused about the right order.
what i have: dvd decrypter, dvd lab, subripper, tmpgenc dvd author, ... anyone can help me?
what I want to do is the following:
decrypt the dvd--} edit the subtitles (english, for example)--}translate it into spanish--}put the new subtitlre into the dvd menu--} burn the dvd WITH the new menu (spanish subtitles included). sound very easy, I thought the translation part will be the most difficult, but... i'm not very sure right now....

[manono]

Just use your remote control to change subs and forget about changing the menus. Making the new subtitles play by default should be enough.

http://forum.videohelp.com/topic338721.html