UPDATED SEPTEMBER 18, 2010
Here's my own settings for om 4.2. Im using om 4.2 adidas moded by czaphire. I can download any file type here even jar files using t9space tricks
IP: v09-16.opera-mini.net or 80.239.242.159


PORT: 80
HOMEPAGE:
http://wap.downloadoverload.com
My OM settings
CUSTOM HTTP SERVER:

http://wap.downloadoverload.com/jadefire.wapgem.com/http/
CUSTOM SOCKET SERVER: socket://wap.downloadoverload.com/jadefire.wapgem.com/http/

FRONT QUERY:

wap.downloadoverload.com/jadefire.wapgem.com/http/
REMOVE STRING FROM URL:

global-4-lvs-seele.opera-mini.net
Uncheck remove port from url
leave the rest blank