Site modifications

Hi I need the following changes made to my site change ammaps from world to Australia.(All installed just needs slight adjust to .xml files) *jobs are supposed to be automatically sending to sellers in the categories that they have selected to receive) is not sending for some reason. *sellers payment is being taken out when they accepting job I want this changed to be taken out when they are receiving escrow payment. *Private message is showing blank white screen with only logo showing on some browsers pda's would like this issue fixed *All bids and private messages should be approved by admin before they are released. Admin should be alerted when anything happens on the website that requires action A alert box to display when private messages are received in user control panel