SSIS Execution Location Problem and config files

The Problem:

I want to be able to use an assembly of an independant application
which is not strong named from within an SSIS script component. I have
created a wrapper assembly (Utils.dll) which is located in the same
directory as it's dependant Dlls for this purpose and I'm calling it
using reflection, example script code is:

Dim UTILS as Assembly
Dim tObject As Type
Dim TheObject as Object

UTILS = Assembly.LoadFrom("D:\\Development\\TestApp\\Utils\\bin
\\Debug\\Utils.dll")
tObject = LILI_UTILS.GetType("Utils.Data.TheObject")
TheObject = tObject .InvokeMember("TheObject",
BindingFlags.CreateInstance, Nothing, Nothing, Nothing)
TheObject.Validate(SomeData)

Although I can call the Validate method, the Validate method uses an
object in this external application assembly, but that object is
reporting that it can't find a certain entry in the config file which
I assume is because it's looking at one of the config files in "C:
\Program Files\Microsoft SQL Server\90\DTS\binn\" rather than it's
specific config file. This is backed by the fact that examining the
AppDomain.CurrentDomain object shows that the BaseDirectory is "C:
\Program Files\Microsoft SQL Server\90\DTS\binn\".

Now I don't know the ins and outs of this external application and I
don't have control of it, in fact it has about 50 of it's own config
files so I don't want to mess about with config structures. Is it
possible to make the working folder for SSIS different to "C:\Program
Files\Microsoft SQL Server\90\DTS\binn\"? Would this even work or is
there another way of making the correct config information being
picked up?

If anyone has any ideas it would be much appreciated, I really could
do with finding a way to use aspects of this external system without
knowing everything about it, there are so many dlls and configurations
of this external app that I just don't know about.

thanks

Hoots.