Spark access to the Openfire server via ISA 2006

Hi Team, Can you pls clarify my below concerns.

We have open fire server available and we connecting the same though spark. this server can connect only internaly.

  1. Is there any way can we publish spark access to the Openfire server via ISA 2006 to access from the public world. (Only selected group of users required this access)

  2. Is there any way can we publish spark web URL via ISA 2006 to public world. (Only selected group of users required this access)

  3. When i am accessing spark web (from internaly), i am getting Error Initialising external mouse wheel support: Security error: Error : 2060. Can you pls let me know how to correct this issue?

Thanks in advance for your help.

Krishna