Lasors section E, page 3 reads:
Credits from IR(A) training
Holders of a CPL(A) or ATPL(A) issued in accordance with ICAO are eligible for a 5 hour reduction in training in accordance with App 1 to JAR FCL 1.205. The same credit can be applied to applicants who have completed a JAR CPL(A) modular course of training (and have met all the requirements for CPL(A) licence issue) but have yet to apply for licence issue provided that the JAR CPL(A) modular course and IR(A) modular course are conducted totally separately from each other, and that there is no training overlap between the two courses.
There is a similar statement on page 5 of section D about the 15 hour credit for holders of an IR(A) who want the 15 hour credit for the CPL.
Hope this helps
Linda