Problems with roms on ttds

Hi some of the games on the ttds wont load. The grey bar goes across the bottom then stops near the end and it comes up
rom loading failed
load rom errcode-Its doing my nut in. I think ive got the up to date firmware but its been playing up with some of the fimware i put on and the sad microsd face come up. so i'm not 100% it is the right one.Also i dont really understand how to patch zelda... i got all the files but dont know what to actually do with them. all very confusing :(

patching is kinda hard but you can get help just by going on youtube and watch a couple videos on there i know i did and learned how to do it off there and i patched mayb four games from bowser to dragon ball 2

If you aren't already, use DSTT 1.17a12 firmware.
http://www.linfoxdomain.com/nintendo/ds/dl.php/DSTT_v1.17a12unofficial_English.rar

IT dose not work for call of duty black ops :'( :'( :'( :'( :'( could u help me find one[size=12pt][color=black]

http://forum.romulation.net/index.php?topic=43121.0
download the latest fixes v6.39. then copy the dat files to your ttmenu folder