you talk about "rparameters? parameters that were in previous versions the avenue?
In this case I think that in those versions could only handle up to 4 variables. However, from the version number of variables avenue is indefinite according to what the manual says the program
As far as I can remember Resolume 2.x only supports (the first) 4 parameters of FreeFrame plugins. But you can somehow work around by "rewiring" the parameter's order using FFRend (see http://ffrend.sourceforge.net/ and Google of course) - hope that helps