SAP BC help

hi,

I am new to the SAP Business Connector, so have a few very basic questions.

It would be nice if somebody could clarify them for me..

1 .What are the allowable Format s for the file s into Business Connector? Does the file format have to be XML??? . I realize that the SAP BC can do some transformation of documents, so can it convert an IDOC into XML and Vice versa??

2.What can the Business Connector do for Publish/Subscribe methodology ?

I know that Webmethods provides a broker server , where the documents could be published and the subscriber would receive the same. How do i acheive the same using BC??

thanks

pawan