OpenMx Help

I am writing a function that returns the standardized parameter estimates for multigroup models. I would like to start the output for each group with something like:

"standardized estimates [model name]"

However, I can not figure out how to extract the model name from the output. Is it possible to get it?

For example if the output object looks like below, how do I extract 'men2'?

MxModel 'men2'
type : default
@matrices : 'L', 'F', 'Q', 'T', and 'K'
@algebras : 'S' and 'M'
@constraints :
@intervals :
@latentVars : none
@manifestVars : none
@data : 5 x 5

Getting this error
Error: The observed correlation matrix is not 1's along the diagonal

from the statement
mxData(cor, type="cor", numObs=1656)

but looking at the data matrix indicates that its diagonal consists of 1's

> diag(cor)
SOF IWF PWF FSC FSF EF GPA
1 1 1 1 1 1 1

cor
SOF IWF PWF FSC FSF EF GPA
SOF 1.00000000 -0.310734680 0.02337843 -0.01050081 0.324939442 -0.49945847 0.83664278
IWF -0.31073468 1.000000000 0.09947420 -0.03052640 0.001136279 0.49532944 -0.10899843

Does anyone have or know of where I could find examples of models where some paths are functions of other parameters? For example, suppose I wanted to estimate two parameters for three paths so the third was a function of the first two: a, b, b + a/2. I've been looking at the ABO blood group example in the documentation, which does some things similar to what I want, but it is a stretch.

Thanks in advance!

R version 2.14.0 (2011-10-31)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)

...

> source('http://openmx.psyc.virginia.edu/getOpenMx.R')
Warning: unable to access index for repository http://openmx.psyc.virginia.edu/packages/bin/macosx/leopard/contrib/2.14
Warning message:
In getDependencies(pkgs, dependencies, available, lib) :
package ‘OpenMx’ is not available (for R version 2.14.0)

Any ideas?
TIA