For Version 18.0 of ADServer we will want to point to the v18.0 documentation found here

1. When we login using Admin user then click admin tab on RHS then select Online Documentation option pointing to the version ADServer V17.0 doc instead of V18 doc.Refer screenshot 'OnlineDocument.png'

2. In System Settings pane ,there is a view mode & an edit mode. 
     In View mode when we click on 'Sharing Passwords'  link , this link pointing to the version ADServer V17.0 doc instead of V18 doc. Refer screenshot 'SystemSettings_ViewMode.png'
     In Edit mode when we click on 'Sharing Passwords'  link , this link pointing to the version ADServer V17.0 doc instead of V18 doc. Refer screenshot 'SystemSettings_EditMode.png'

3.  If ADServer does not start properly, there is a "Server not Started" page which is displayed.
     Under this page click on Aqua Data Server link , this link pointing to the version ADServer V17.0 doc instead of V18 doc. Refer screenshot 'SERVER_not_Started_Aquadataserver_log.png'
     Under this page click on Tomcat link,  this link pointing to the version ADServer V17.0 doc instead of V18 doc. Refer screenshot 'SERVER_not_Started_Tomcat_log.png