Hi - I am currently on a H4 visa and I have an employer who is willing to file an H1B visa for me ? When can I start working ? My H4 visa is currently valid until Sept 2009.
Will this be a "change in status" and does it mean that I can start working as soon as I get the approval from the USCIS?

Ild love to help, but I don't know what H4 or H1 Means! I'm 12 and ild love to start working, but I am in Australia.