I hold some class B finance bonds maturing on...

I hold some class B finance bonds maturing on 31.3.2010(unlisted).
I find it hard to follow the security position from the prospectus. The guarantor is Timbercorp Finance and security is by way of a fixed and floating charge over its loan book.
There are clauses relating to covenants etc but some other clauses relating to removal of loans from the pool.
Is anyone else in this position with an informed view on the security
situation?
Any info appreciated,
Pargolf