The problem of buttons (pls help me)

How do I do that those buttons are in one row behind and to work in any browser? Please help this is urgent!

Code:

<div class="changer">
<a class="mainmenu" href="/admin/index.forum?part=admin&sid=9f64eda2e68244a46b30713056bf4979"><img src="http://i60.servimg.com/u/f60/14/80/88/43/admini10.png" style="position:absolute;top:6px;right:1100px;left:5px;margin:auto;"></a>
<a class="mainmenu" href="/report.forum" target="_blank"><img src="http://i60.servimg.com/u/f60/14/80/88/43/report10.png" style="position:absolute;top:6px;right:1100px;left:105px;margin:auto;"></a>
<a class="mainmenu" href="html-h6.htm" target="_blank"><img src="http://i60.servimg.com/u/f60/14/80/88/43/banner13.png" style="position:absolute;top:6px;right:1100px;left:485px;margin:auto;"></a>
<a class="mainmenu" href="html-h7.htm" target="_blank"><img src="http://i60.servimg.com/u/f60/14/80/88/43/hodnos10.png" style="position:absolute;top:6px;right:1100px;left:2086px;margin:auto;"></a>
<a class="mainmenu" href="html-h15.htm" target="_blank"><img src="http://i60.servimg.com/u/f60/14/80/88/43/radio10.png" style="position:absolute;top:6px;right:1100px;left:1885px;margin:auto;"></a>
<a class="mainmenu" href="/contact.forum" target="_blank"><img src="http://i60.servimg.com/u/f60/14/80/88/43/kontak10.png" style="position:absolute;top:6px;right:1100px;left:285px;margin:auto;"></a>
</div>