Vista - Problem with Power Shell and .config Files

We're new to PS, and trying to instantiate and invoke our .NET objects from
PS scripts. What a GREAT tool!

We've overcome the initial learning curve, gotten past the intracies of
LoadFrom() vs LoadFile() in the Reflection namespace, but have been stopped
short because our objects hit .config files.

We overcame the first problem - finding our config file in a custom
location. For those not familiar, this does the trick nicely:

[System.AppDomain]::CurrentDomain.SetData("APP_CONFIG_FILE", $currDir +
"\app.config");

Now, however, we're hung up again because we use a custom config section:

<section name="BMT" type="Bmt.Shared.Common.BmtConfigurationSection,
Bmt.Shared.Common, Version=1.0.0.0, Culture=neutral,
PublicKeyToken=b2911254f1c07a11"/>

Even though our "Common" assembly has already been loaded in the PS1 script
AND is in the same directory as the .config file, the .NET configuration
architecture can't find it.

Can any of you PS gurus help us out? We don't wanna put this assembly in the
GAC.

'Preciate it,

-BillyB