The only credit you receive for Microlight flight time is 10% of PIC time up to a maximum of 10 hours towards a JAR-FCL PPL. And that only applies to 3-axis Microlights. It is relatively simple to add a SSEA Class Rating to a NPPL opened with a Microlight Class Rating; however, to convert a NPPL to a JAR-FCL PPL(A) will still require the completion of additional flight training time as described in LASORS 2008.
There is no credit for Microlight flight time towards a JAR-FCL CPL.
I recommend that you download and study LASORS 2008 before making any definite plans.