samsung omnia i910 need help mms

[assman]

this is where im at to send bigger files with my mms
HKEY/LOCAL/MACHINE
software
samsung
MMS
settings
MAX size
on top your screen you will see this hklm/software/mms/settings/maxsize/
its says
Dword
(dec) 506880
(hex) 0007BC00
ok i need to know whats the (dec) codes for bigger mms
i did (dec) 1506880 and it give my 1.5mp to send but when i send it it says cuold not send all the massages
so i just need some (dec) codes to see if this works anyone