HELP! - lose child links on node page accessed from a view

Hi,

Would appreciate some pointers on how to deal with this issue:

I have a Primary Link ('Offices') which has the following children: 'National offices'; 'Regional Offices'; 'Local Offices'.

Each child is a view page (a node list teaser of the relevant offices).

When I click on a child link (e.g., regional offices) the relevant view list page is displayed, and the parent link (Offices) the other child links above are still displayed.

However, when I click on one of the nodes on this page (i.e., an individual regionalo office) I lose the child links with only the parent remaining.

Where have I gone wrong?

Any help much appreciated.

Thanks a lot.