API Exception Details

In our API exception emails, it looks as if there is a place for detailed info about the paramters passed that cause the exception to be thrown, but there are not any curently showing up. Does anyone know if this is something that can be "switched on"? Currently, I just get a Pricetype exception, but no details on the parameters used to arrive at the problem - just that it was an AddPackageItem call that caused it. I want to know which package was the problem, since we are a consortium and have 4 organizations, each with their own subscription packages. Any thoughts?

Here is what I currently get:

Time Sent: 2009-09-20 22:13:35.2167566
ApplicationPath: /
Cookies Enabled: True
CurrentExecutionFilePath: /Tessitura.asmx
FilePath: /Tessitura.asmx
Path: /Tessitura.asmx
PathInfo:
Url: https://webapi1.tpac.org/Tessitura.asmx
UrlReferrer:
UserAgent: curl/7.15.5 (x86_64-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5

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Form Variables

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[This is where I would expect to see more detail]
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QueryString Variables

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[This is where I would expect to see more detail]
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Server Variables

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ALL_HTTP=HTTP_CONTENT_LENGTH:590
HTTP_CONTENT_TYPE:text/xml; charset=iso-8859-1
HTTP_ACCEPT:*/*
HTTP_HOST:webapi1.tpac.org
HTTP_USER_AGENT:curl/7.15.5 (x86_64-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5
HTTP_SOAPACTION:"http://tessiturasoftware.com/AddPackageItem"