TOPIC: 2.7.3e jomsocial issue

I have been having nightmare with this
I set up to use jomsocial as profile and set to not edit.

However, when comes to book event, pulls the profile data, but can edit the fields. Can receive booking email as well as admin notification, but no update email if add a partial payment.

Ended up deleting whole site and starting again with just Jomsocial and DT Register
With error reporting on max found this on booking page:

Notice: Undefined index: 35 in ....public_html/administrator/components/com_dtregister/models/jomsocial.php on line 73

So how do i resolve it? I am using Joomla 1.5.22, with Jomsocial 2.0.5 set to multiple profiles, and also set Name field to FIELD_GIVENNAME for first name and FIELD_FAMILYNAME as surname.

Nathan seems pretty flat out sorting issues. It is a very heavy database component so can see conflicts are easy to arise.

Anyone else out there help, much appreciated