I have a form running inside an iFrame, but for some reason, the text is all aligned on the righthand side and the punctuation shows before the text. Help!!

This is a known Joomla 1.5.15 bug.
Look in your Joomla directory structure and see if you have this file: 
templates/system/css/template_rtl.css

If so, try replacing the file with an empty one (or comment out the appropriate code as noted in the post below).

http://forum.joomla.org/viewtopic.php?f=430&t=463851&start=0 

That should solve your problem.