Windows 32 bit R 2.15.0 is returning the following:
Installing package(s) into ‘C:/Users/woad/Documents/R/win-library/2.15’
(as ‘lib’ is unspecified)
Warning: unable to access index for repository http://openmx.psyc.virginia.edu/packages/bin/windows/contrib/2.15 
package ‘OpenMx’ is not available (for R version 2.15.0)
Do you have a time line for support of this version?