I have created my ad unit but cannot figure out how to display it on my hubpage. I have found tutorials that talk about inserting the HTML code into the page source, but I do not have HTML editing software.
I am sorry, but you seem to have misunderstood how AdSense works on HubPages. Ads are already running on your hubs. You need to insert your affiliate ID in the control panel, found under My Account / Earnings, then grant HubPages access, and your ID will automatically be displayed in 60 percent of ads. The ad units you talk about are for webmasters, not Hubbers.
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