Frank
You are right that the Geometry Report, even for a PI Based alignment doesn't report the PI Locations - I will put that in as a request today to see if Trimble can address that.
If you run the Alignment Geometry Report you get an HTML Report in your Browser.

You can copy all the Text and paste it into Excel (as Text) and you get all of the PI information. (Red Text is what you need I think right)?

When you mention HCSS - what do they use the Alignment Data for and do they have a specific format that they require for the alignment as Trimble has a partnership with HCSS to sell HCSS outside N America and so creating better links between TBC and HCSS is in the interests of Trimble to further the integration capabilities.
If you can tell me why HCSS needs an alignment, and if you can give me the format they need - we can likely get a dedicated routine written or adjust an existing one to get what they need. If you have a CSV file that you have given them in the past that works, please send me the VCL file of the alignment and the CSV output you need to create and I will have Trimble take a look at it.
Thanks
Alan