url rewrite help

[PHPycho]

I am reopening this thread because this regex didn't worked in live server
though it worked perfectly in localhost.
In the live server apache is V1.3. I think the regex is not running its because of assertion type.
The error shown by the server is compilation error.
Is there any alternatives for this regex that doent use assertion.

Thanks in advance for the valueable help.

[g1smd]

Show the code here!

Use "example.com" for the domain name.