Using Dynamics AX's Business Conectors to Generate Sales Orders

So, just like the title says, I need to create an application that gets data from another Database, and shoves it through Dynamics AX's throat.

This data comes from a portal, not Enterprise Portal, but a PHP one. It stores some data from the order in a separate database. So as said, I need to 'import' that to AX, creating the sales orders with the data I have from the other database.

Also I'd like some references on Business Conector too, does it handle all those RECIDS and references that AX uses for me?

Thanks in advance.

EDIT:

OK, I'm able to insert records in AX's database, theres just one problem. I can't generate the internal ID. Like, the 'AccountNum' field for the CustTable. Is there a way to capture it from business connector?

In the end, I didn't use the .NET Business Connector, we got the other application to insert data in a table in the AX's database. Then found some code on the internet to generate the next salesID for each record I inserted in the SalesTable table. Though I must add that using the .NET Business Connector didn't sound so hard from what I've searched.