Update: Inserting Links on to Images Issue Thunderbird 5

I was able to get a hold of an unofficial Beta Release for Thunderbird 6 earlier today. I had no issues pasting via right-click into the link field on the link tab when inserting an image. So it appears this was a glitch within Thunderbird 5.0 only. As a reminder Thunderbird 6.0 will be released on August 16th.