1) The rounded corners on the buttons are done by CSS.
In the
webassist/themes/<your theme>/css/crazy_styles.css
where <your theme> is the power store theme you are using, the following styles effect the buttons:
.ps_buttons, a.ps_buttons {
border: 1px solid #3E434B;
-moz-border-radius: 10px; /* FF1+ */
-webkit-border-radius: 10px; /* Saf3+, Chrome */
border-radius: 10px; /* Opera 10.5, IE 9 */
padding:0 10px !important;
font-size: 13px;
line-height: 25px !important;
text-decoration: none;
font-weight: bold;
width: auto;
overflow: visible;
}
the -moz-border-radius, -webkit-border-radius and border-radius styles create the rounding effect.
2) No, power store does not support multiple locations on the about us map.