Business process for SCM Lawson ?

Hi Folks, 

I am actually from SAP background but recently moved into SCM Lawson ERP. I have few basic questions about Lawson if you guys can give your expert views will be highly appreciate :

1. What is the current version of Lawson been used in Enterprises?
2. What is the Organisational Structure, Master Data and Business Process in Lawson SCM?
3. Where can I get the transaction codes for SCM Lawson?
4. What are "forms" in SCM Lawson?

I know these might sound a bit basic but its important for me at this point. Hope to hear from you experts soon. Thanks in advance