hi people! been a while! hope every one is sweet!

anyway i have a problem people!
i saw a vid on youtube of someone using 3D Ripper DX on gta4 to grab half the game map for 1 car! not i didnt know this could be done in games but now i do i must have a play!
now my problem is when i go to start 3D Ripper DX with gta4.exe it crashes because i have to use the launchgta.exe!? so my question is:
how do i get around this? how can i make 3D Ripper DX launch gta4? i know how to use other tool for gta4 but its 3D Ripper DX i want to use! i did search the forum first and the net for answers but no luck yet! so how is this done? thanks people