fixed pop-ups

change these sections:

.popup_block{
        display: none; /*--hidden by default--*/
        background: transparent;
        padding: 20px;
        float: left;
        position: fixed;
        top:50%;
        left:50%;
        z-index: 99999;
        height:347px;
}

.poptext {
    margin-left:auto;
    margin-right:auto;
    margin-top:-15px;
    width:250px;
    padding:10px;
    margin-left:170px;
    height:450px;
    overflow:auto;
    text-align:justify;
    color:{color:background};
    background-color:#dddddd;
}

to THIS:

.popup_block{
        display: none;
        background: transparent;
        padding: 20px;
        position: absolute;
        z-index: 999999;
        height:100px;
}

/*-- you delete the top and left sections from popup_block
and you change the margin-left and margin-top values in poptext
to whatever you need it to be to line up with your posts
also change the background color to suit your style --*/

.poptext {
    margin-left:0px;
    margin-top:0px;
    width:272px;
    padding:10px;
    height:331px;
    overflow:auto;
    text-align:justify;
    background-color:COLOR;
}