Extension page:

http://www.opencart.com/index.php?route=extension/extension/info&extension_id=9132

Demo:

http://opencart.dreamvention.com/200/d_quickcheckout/

Compatibility:

OpenCart – 2.x
BurnEngine minimum version – 1.0

Installation:

1) Disable the Force Bootstrap option in AQC design options

http://i.imgur.com/6req6DH.png

2) Extract the attached archive in your webstore root folder.

3) Add this extra CSS either from Your Theme CP > Theme Settings > Custom > Custom Stylesheet text field, or from AQC design options > Set Custom styles:

#d_quickcheckout .panel-heading {
  margin-bottom: 1.5em
}
#d_quickcheckout #remeber_password {
  display: block;
  margin-top: 10px;
}