Adobe Premiere is designed for professional use, Sony Vegas is easier to use. In most cases, Vegas is a better choice.
I think he uses Adobe Premiere Elements or something.
"premiere" project refers to the editing application: Adobe Premiere from Adobe Creative Suite of applications.
Adobe Premiere Pro and Adobe After Effects.
It is an advanced video editing program.
An Adobe Premiere video editing project file would usually have a .ppj extension.
Adobe Premiere is a great product for video editing, along with Final Cut Pro and Avid.
Adobe Premiere Pro
The purpose of Adobe Premiere is to work with video files, image sequences, and audio files. It is a video editing program. You can manage and change video content in many ways with Adobe Premiere.
Digital Video Editing
Premiere is more of the timeline to put clips in. Adobe After Affects is more suited toward editing
I would guess, Adobe After Effects, Adobe Premiere, or Sony Vegas.
One can download the Adobe Premiere Elements 4 at the popular and safe Cnetdownload website. One can also visit the Adobe's official website to download this software.