You will need to use an FTP (File Transfer Protocol) program like Filezilla to get the Cutline files you unzipped onto your site. You can download Filezilla here if you don't happen to have it yet. (It's free, yippee!)
http://filezilla-project.org/
Be sure to download to "Client" version, not "Server".
In Filezilla, you'll want to enter the IP address of your site, your Wordpress username, and Wordpress password, then click "Quickconnect".
On the left will be the files on your computer and on the right will be the files on your website.
Drag and drop ALL of the Cutline files after you unzip it to your themes folder. You can drag and drop from Winzip to the place you want it at in Filezilla too. A little short cut from having to find the files in your hard drive. The path to your themes folder should look something like: www>name of your site>wp-content>Themes. That is where you want your Cutline files to be.
Once you have all those Cutline files in your WordPress Themes folder, log into your Wordpress dashboard. (www.nameofyoursitehere.com/wp-admin). Click Presentation and you should see the Cutline theme listed as an "Available Theme". Select it as your primary theme and voila!
Please don't hesitate to post any questions here. THERE ARE NO STUPID QUESTIONS.
:)
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