Okay, im half way to figuring it out. I decided to use the other option and I added the files in using the intergrate command. Then when I have gone to test the image again, I actually left in the patches and the .inf file and this time round I have gotten to the t-13 stage and it is actually installing all the updates. So, new question. In future, I would rather not use the integrate method, but which patch out of the above in that list do I need to actually integrate before the svcpack.inf method will actually work properly. Any ideas?