Hello Anita,
It appears that everyone must be away this weekend soaking up the sun
possible reason why you had no replies to your request for info on porch awnings.
My experience with porch awnings is limited to Eurovent with steel poles, also Ultima 260 which is easy to put up but I find best for short stays. On long stays 5 nights or more I put up the Isabella Capri full awning and believe it or not, find it easiest of them all to put up.
Depending on how much you can afford, family size, how fit you are etc, I would recommend the best which is the Isabella which do a porch awning.
Below I have found some info which you may find useful while waiting for the after the week end replies.
http://www.caravanclub.co.uk/NR/rdonlyres/002DFEA2-A859-4373-8CA8-C935F42BEAAE/0/AllaboutAwnings.pdf
Cut and paste into your browser address bar and you do have to have Adobe Acrobat to be able to read the pdf file. I you don't have Adobe reader you can get it free here:
www.adobe.com
Best wishes,