If you plan on using or updating IMP, please note that as of r760 most of the concrete functionality of IMP (e.g. restraints, scoring functions, decorators) has moved from the kernel to a new 'core' module, as previously discussed. If you do update IMP, be sure to run 'scons test' to make sure everything works correctly. You will also need to change any Python scripts to use the core module - e.g. rather than import IMP ... r = IMP.DistanceRestraint(...) it is now import IMP.core ... r = IMP.core.DistanceRestraint(...)
For C++ code, use IMP::core::DistanceRestraint rather than IMP::DistanceRestraint, #include <IMP/core/DistanceRestraint.h> rather than <IMP/restraints/DistanceRestraint.h>, and link against libimp_core in addition to the kernel in libimp.
Let me know if you run into any problems. Once the new code has worked its way through the build system and has passed all of its tests, and I have policies in the manual, I'll open up the repository for write access.
Ben