hi, how can i mine on your pool with my ATI HD4730 GPU?

Hi all :)
If somebody knows how to mine FC on ATI Radeon HD4730 please help. I’m using 11.2driver+SDK 2.3. I was tryed all versions ATI drivers from 11.2 to 13.1 (18 different versions) but GPU-Z detects OpenCL only with 11.2 driver + SDK 2.3 installed. When i start cgminer with -n it shows: ATI RV770 OpenCL 1.1 ATI-Stream-v2.3
I’m starting start “featherpool.com.bat” with
setx GPU_MAX_ALLOC_PERCENT 100
cgminer -T
and in my cgminer.conf:
{
“pools” : [
{
“url” : “http://featherpool.com:9999”,
“user” : “onik1318.1”,
“pass” : “x”
}
]
,
“intensity” : “8”,
“worksize” : “128”,
“lookup-gap” : “2”,
“shaders” : “640”,
“expiry” : “30”,
“gpu-dyninterval” : “7”,
“gpu-platform” : “0”,
“gpu-threads” : “1”,
“log” : “5”,
“queue” : “1”,
“scan-time” : “60”,
“scrypt” : true,
“shares” : “0”,
“kernel-path” : “/usr/local/bin”
}
GPU load is 0% and in the command line window:

D:\FT\cgminer-3.0.1-windows>setx GPU_MAX_ALLOC_PERCENT 100
SUCCESS: Specified value was saved.
D:\FT\cgminer-3.0.1-windows>cgminer -T
[2013-04-28 22:26:11] Started cgminer 3.0.1
[2013-04-28 22:26:11] Loaded configuration file cgminer.conf

[2013-04-28 22:26:11] Probing for an alive pool
[2013-04-28 22:26:15] Network diff set to 1.8M
[2013-04-28 22:26:15] Long-polling activated for http://featherpool.com:9999/LP
[2013-04-28 22:26:36] LONGPOLL from pool 0 detected new block
[2013-04-28 22:27:23] LONGPOLL from pool 0 detected new block
who knows why scrypt mining does not work on my HD4730?