For you that still confuse with GNS, here I found great video on how to download GNS3, then install and getting its work, also another videos that related with GNS. Watch all theses videos, follow all screen instruction then test on your labs..
More videos:
http://www.youtube.com/user/ConfigTerm
http://www.youtube.com/user/routergods
http://www.youtube.com/user/bowlersp
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Aziz asalamu alikum
I need the Gns 3 to prctice for my ccna exam do have a link that I can download it from it
thanks