How to change colour of price display and move Profile image?

1. I am using the default theme for my Classifieds theme, and the price figure on the post page is white against a light grey background, which makes it almost invisible! Please see screenshot (#1).

How do I change the colour of this price display?

2. The Profile Image is displayed on the next line after the Profile Name. How do I get this Image to appear just after the Name on the same line? Please see screenshot (#2).

My current code for this Listing Page Layout is:
<div class=”block”>
<div class=”pricestricker”>[price]</div>
<div class=”block-title”><h1><span>[TITLE]</span></h1></div>
<div class=”block-seller”><h3><span>Posted by: [AUTHOR]</h3> [AUTHORIMAGE-CIRCLE]</span></div>
<div class=”block-content”>[IMAGES]
<ul class=”nav nav-tabs” id=”Tabs”>