'heapdump.xxx.phd'. Not a HPROF heap dump (java.io.IOException) Not a HPROF heap dump

You have to install DTJF in order to read IBM files.

http://wiki.eclipse.org/MemoryAnalyzer#System_Dumps_and_Heap_Dumps_from_IBM_Virtual_Machines

Eclipse download site is at the bottom here:

http://www.ibm.com/developerworks/java/jdk/tools/dtfj.html