So MYOB finally fixed the date seperator issues so you can now use the decimal point again (Although not in all places - eg not when filtering reports)
However now when you go into the date fie...
Status changed:
New
to Done
This has been fixed and will be in the 2013.0 update which will be available in the next few weeks. After you enter a tranaction the date field will now be reset and the cursor will be set to the dd field allowing you to just start typing the next date.