How to align icons and their corresponding text link center in a widget?

Here's the css to the section of the site you used as an example..

#featured-categories {
padding:42px 0 38px;
}
#featured-categories:after {
content:' ';
display:block;
clear:both;
}

#featured-categories .section-heading {
margin-bottom:28px;
text-align:center;
}

#featured-categories .featured-category {
display:inline-block;
padding-top:57px;
width: 19%;
vertical-align: top;
float:none;
text-align:center;
background-image:url(images/categories-sprite1.png);
background-repeat:no-repeat;
margin:25px 0;
color:#333;
text-decoration:none;
opacity:1;
-webkit-transition: all 0.2s ease-in;
-moz-transition: all 0.2s ease-in;
-ms-transition: all 0.2s ease-in;
-o-transition: all 0.2s ease-in;
transition: all 0.2s ease-in;
}

#featured-categories .featured-category:hover {
opacity:0.6;
/*box-shadow: 0 0 42px 0px rgba(245,245,245,1);
background-color: rgba(245,245,245,.5);
border-radius:100px;*/
}
#featured-categories .featured-category#featured-cat-biblical {
background-position:67px 0;
}

#featured-categories .featured-category#featured-cat-budgeting {
background-position:-124px 0;
}

#featured-categories .featured-category#featured-cat-save-money {
background-position:-318px 0;
}

#featured-categories .featured-category#featured-cat-make-money {
background-position:-501px 0;
}

#featured-categories .featured-category#featured-cat-entrepreneur {
background-position:-691px 0;
}

#featured-categories .featured-category#featured-cat-career {
background-position:62px -123px;
}

#featured-categories .featured-category#featured-cat-invest {
background-position:-126px -123px;
}

#featured-categories .featured-category#featured-cat-diy {
background-position:-313px -123px;
}

#featured-categories .featured-category#featured-cat-debt {
background-position:-501px -123px;
}

#featured-categories .featured-category#featured-cat-management {
background-position:-691px -123px;
}

You should go with C++, Java or .net and if you want to learn some basic web development go with PHP