In the Temp table, have a field type as Container with EDT Bitmap. In DP class, you can use FormLetter::CompanyLogo(); to assign your Legal entity Logo. (Note: Use JPG, JPEG) formats.
In Visual studio, add image in Header using Toolbox by dragging or by right-clicking in Header, in Image properties, select the Dataset, and Image type. Finally Deploy the SSRS report.
And for this question "I would load the 'other' logo into the tmp table. Any suggestions would be greatly appreciated."
You can based o the logic you want to apply to do change company to the company that you want to get its logo and then call FormLetter::CompanyLogo().
Thanks,
Waed Ayyad
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