You can add this to your style.css file –
.qtrans_flag_en {
background-position: right !important;
}
And then this to fix the padding –
.qtrans_flag_and_text {
padding: 1px 25px 0 0 !important;
}
In the future it’s usually recommended to contact the original author/developers in regards to third party plugins if you need support. But that code I pasted above should override the plugin’s code and get you setup.