Anthony,
I can confirm this - erratic - behavior (in FireFox 2.0). Somethimes the little icons will be sitting next to the question name, sometimes they will jump to the right. Usually a screen refresh (press F5) will restore them into place.
In MSIE 7.0, on the other hand, the icons consistently sit aligned to the right.
I am surprised that Martin D. should say "I would suspect it's related to the switch in 1.8 to using less tables for layout and more CSS instead" because actually this problem happens right in the middle of... a table.
<td>animal MCQ06</td>
<td align="center">
<a href="..." title="multichoice"><img src=".../icon.gif" alt="Multiple Choice" title="Multiple Choice"></a>
</td>
Joseph