If you wanna install Skype Client on Your Android HTC Aria SmartPhone we strongly recommended that you use HTC Aria Android Market and then search from the market with a keyword “Skype”. As we already knew, HTC Aria attached with Android Enclair aka Android 2.1 Mobile Operating System that means, you need to install Skype for Android Mobile Phone.
As long as we knew, there are no pre-installed Skype in HTC Aria, that means you need to install in your Aria through manual way. If you do not want get and download then install from Android Market, alternatively, you can also visit the official page of Skype for Android at http://skype.com/m. Just pointed you Android Browser to the url page then follow the rest.
By using Skype in HTC Aria, you can make a FREE Internet Call from Skype to Skype. You can also get a cheap VoiP service to make a Call from Skype to Mobile Phone / Home Phone number trough VoiP by Skype. Enjoy