Well, first order of business, control if the real Wellington is offset in real life too (I have no idea). If it is, then FS is doing only its work in presenting it offset. 8-)
As to change it; I have my homebase (LIRN) that has the ILS on runway 6 offset of 3 degrees and I'm not going to change it on the AFCAD only because it's easier to use the autoland. Though each and anyone of us is free to do whatever s/he prefers on his/her FS, it would be a problem if this person with personalized, non standard approach on his/her airports ever decides to fly online, does it not? Better keep the ILS aligned to reality and complete the last part of the landing SIH (Stick In Hand). It's not much after all, the greater work is done by the autopilot anyway.

Now, if Wellington in real life is aligned and FS gives it offset, that's another problem. If you want I can do the corrections easily enough. Suffice you give me the ICAO and your email and ASAP I'll send a corrected version to you.
