The AAVSO is promulgating a set of tools to make it easier to submit transformed data. These are described at http://www.aavso.org/transforms-everything-you-need-transform-your-ccd-observations 
Gordon Myer's PTGP tool helps you compile your transform coefficients. Another tool is the TransformApplier which applies your coefficients to your WebObs submission.
I'm looking for volunteers to try out the new program. Please do give it a try!