Many swim clubs use the standard websites provided by Swimming Australia via APT. The online race entry system is available within these websites via a popup box. To get external websites to link to the online race entry system use this URL:
https://connect.swimming.org.au/sal-wrap-public/workflows/MEMBER.EVENT.DETAIL&dbWorkflowKey=XXXXXX
XXXXXX should be replaced with the 6 digit code for the meet from the online race entry system.
Many thanks to Darryn Booth for locating this for us.