It is fine to just directly copy the files from /usr/local/natinst/cvirte. All the rpm does is copy the files, add symbolic links in /usr/local/lib to the newly copied shared libraries and make sure that /usr/local/lib is in /etc/ld.so.conf.
If you are using the analysis library you also need the shared libraries installed by labview-rte-aal-1.1-1.i386.rpm.
Michael
NI