Thanks for the replies Dan and sbsim.
As it happens Sbsim I am using ASN
Okay this is what I did last night, and I am sorry if I mention other products in this post but I just want to explain my flight plan process, then I might be able to find away around the runway swap.
During my start up I start ASN (last night with force ATC lock on), I then load PFPX and check its updated via ASN. I plan my route, last night LIRN to EGKK. PFPX had me set for a Rwy 24 departure and a 26L arrival. I exported my flight plan in the required formats.
I fired up PF3 and loaded my FP, checked setting and set my FAF height and distance for 26L, I then made and altered my arrival height to be at 4K at waypoint Timba. Saved and returned to the main screen ready to connect to FS
I load FSX-SE, input my flight plan which also loads the FP into ASN, set departure airport, plane and time of day. Then load to sim and load FP to aircraft
I then take off and during cruise check the weather in the addons window for ASN and PF3 ATIS. Winds were at 151@6 which gave me a 08R arrival. Which is no drama normally, but as mentioned in another thread the FAF heights and distances are very different at EGKK. As I approached I was obviously given vectors to 08, but then I also know that getting established on the ILS will be a mess as once you have planned you route you can't alter the FAF settings. And yes I had to make a few alterations to my flight to get established, it was like a roller coaster at Alton Towers
Anyway I am currently waiting to hear from the guys over at ASN as to what triggers the ATC lock so I can work out arrival runway correctly.
I hope in time that PF3 will have some form of option(s) that can cater for this issue
Regards Rob