Absolutely, this should do it:
.wpsp-social-link,
.wpsp-social-link:visited,
.wpsp-li-button,
.wpsp-li-button:visited {
color: red;
}
.wpsp-social-link:hover, .wpsp-li-button:hover {
color: black;
}
As for the title alignment, try this:
.wp-show-posts-entry-header {
text-align: center;
}
