increasing autoit range? easy!
note you must have knowledge on "how to use ollydbg"
load sro_client.exe into ollydbg and let it analysis
then right click anywhere and pick search for -> all switches
and try to find cases: 3E8 .. 1388
double click on that line , right click anywhere and pick
goto -> case 3ED then press enter
highlight a line with FLD and right click then follow in dump -> memory address
try to modify the value of 70 to 5000 or whatever
highlight the first 4 bytes on the dump and right click -> copy to executable file
on the next window right click and save