Please will some one help me with what is probably a simple Linux error?

I have installed Boost 1.40 on Centos 5.3 using an rpm from blackopsoft.com.

When I run my executable I get:

Failed to load the following library files:

[snip]

dlerror = libboost_python.so.2: cannot open shared object file: No such file or directory

Executing:

/sbin/ldconfig -p | grep boost

gives:

libboost_python-mt.so.1.40.0 (libc6,x86-64) => /usr/lib64/libboost_python-mt.so.1.40.0

libboost_python-mt.so (libc6,x86-64) => /usr/lib64/libboost_python-mt.so

libboost_python-mt-d.so.1.40.0 (libc6,x86-64) => /usr/lib64/libboost_python-mt-d.so.1.40.0

libboost_python-mt-d.so (libc6,x86-64) => /usr/lib64/libboost_python-mt-d.so

Please can anyone suggest what is wrong?

Best regards

David