Hi Nat and thanks for the reply!
When I created my first movie (just putting things together and generally experimenting)everything went as planned with stills at both the start and the end. The only difference was that I done the commentary at the same time as I videoed the video. So the first was pretty rough with loads of umms and errs.
When I recorded the commentary seperately for the sencond video, this is when it all went wrong. I played around with it (this is my way of learning new stuff) and added the start of the commentary over the Welcome JPG and it sort of worked but the audio started at the beginning of the video which resulted it everything being shoved further along the time line and finally out of sync. The audio that was over the stills scrunched up into the time of the movie and did not play the stills. Even when I made the stills 10 minutes long, the stills were never played. Saying this, they did appear in the previews, which is annoying.
So, my second video had no stills making it just 5 minutes long and having to cut out a still I needed in the middle to enphasis on a point. This still incidentally flashed for less than a second even when I made it several minutes long.
I have looked at using the blank page with the overlay and this does work so this will be the route I will be using from now on. I must admit, I am the sort of person that needs to know how to use the software properly and not have to find alternative solutions. Anyway, the method you have suggested does work and so thank you for your help.
Thank you!