Hi Shing Lau,
Symbian Open Signed Online allows to sign only applications whose UIDs are allocated to your own SymbianSigned account. So, afaik, you cannot use this process to sign a KuneriLite application by using the free version, since its UIDs are allocated to KuneriLite account.
Anyway, you can easily sign your application by using the Offline version of Open Signing, so:
* generating a certificate:
https://www.symbiansigned.com/app/barclayhtml/devcert/requestupload.jsp* and then using the key/certificate pair, by specifying their paths in the 3rd step of KuneriLite Wizard, together with the used password
If you don't have it, you'll need the Symbian DevCert Request Tool to generate you developer certificate:
http://developer.symbian.com/main/tools_and_sdks/developer_tools/critical/dev_cert_request/index.jspHope it helps,
Pit