How to move social media buttons to far right

It might be because you updated HikaShop and you had the CSS customized which means that you didn't get the new CSS to handle the google +1 button, as explained there:
www.hikashop.com/en/support/forum/3-bug-...snt-align.html#23419
In that case, you should get the CSS from the default CSS for the social networks buttons and copy it over the social networks CSS of your modified CSS.

In the options of the social network plugin, you can configure the position to the right. Then it should be automatic.

Could you give a link to that page with the buttons aligned to the right so that we can look at the HMTL and CSS of that page ?

The problem is that you put a width of 5px in the options of the social networks plugin. Thus, it's displaying the buttons off the page on the left. If you set a proper width like 800px, it will display on the left.

You can edit the front end CSS file of HikaShop via the Display tab of the configuration and change the code:
#hikashop_social span.hikashop_social_right_tw_horizontal {
position: absolute;
right: 130px;
}

to:
#hikashop_social span.hikashop_social_right_tw_horizontal {
position: absolute;
right: 110px;
}