Hey there.

This is what you should do;

Download the latest firmware for DSTT and DSTTi from here

http://gbatemp.net/topic/267243-retrogamefan-updatesreleases/

Download the Latest Multi Cart Update is v6.72

Then download the Latest DAT Update : v6.72 5930 and transfer the extinfo, infolib, savlib and usrcheat.dat files into the firmware

Then transfer the TTMenu and the TTMenu.dat into your sd card and your ready to go.

If there any problems, tell me and I`ll try my best to help you.