I downloaded and installed Essential Regression. There appears to be a problem in the French version of Excel. In ER you have to select this option. If there is an exponential expression, you can form the logarithm etc. We have written something about this topic in our electronic book.
Problems can occur, however, with the error structure.
Alternatively, you can perform a forward regression starting with no input variable at all. There seems to be a problem with our setup in WIn98, probably due to changes in the VB engine. Again, this is not a simple renaming, but extraction and renaming in one step. This should finally give you a running version of our software. Based on our experience, the current versions of ER and EED should run in Excel 2000.