Hello Molly,
thanks for replying to my post and for letting me know about the bad link. Give it another go as I think I've sorted it out.
I'm not particularly technically minded either so I share your pain, which is why I've added step-by-step guides on my site to the procedures I've now worked out. All I can suggest is to invest lots of time and be prepared for the odd problem but with a little help from forums you'll get there in the end, and it'll make it all the more satisfying!
Thanks again.
Justin
www.sussexastroimaging.co.uk