There are 2 Hightail Mac applications Hightail.app at version 2.15.0 and Hightail Desktop App.app at version 126.96.36.199483
Mac Informer appears to be confusing them.
If you've encountered version issues, then I recommend to download the latest version from the developer's website while the one from Mac Informer will be fixed. You can use the following direct download URL to save the package: https://static.hightail.com/plugins/HightailDesktop.dmg
Secondly, check for updates regarding the Mac Client and then after you install the latest version, perform a Refresh.
And, finally, I may recommend addressing your request to the support team that can tackle such kind of a problem. Open the main page of Mac Informer website and click on the Feedback & Support button at the bottom of the page: http://screencast.com/t/yaiPfzQbi
Mac Informer is still confusing these 2 applications the icon for Desktop is a red septagon with a white H on it.
For the Hightail Express icon the septagon is partly tucked into an envelope