Sorry for late reply, didn't see this topic until today.
All you need is a programe like Windows Movie Maker which comes with, obviously, windows, if you have a Mac, I'm sure it has a similar programme. You can put all the videos together with it and then add music, fades, effects etc, all very intuitive.
The only problem you could have is with the format of the videos. This kind of programmes usually accept many formarts but sometimes there are some not compatible, in this case you will need to convert them to any kind of format accepted. There is a free and very useful programme to do that called "total video converter", also very intuitive.