for anybody else trying to fix this issue on windows this might help...
i downloaded the php_mcrypt.dll from the windows binary 4.3.2 release and copied it into the php/extensions directory (after stopping apache of course) and then the correct version of libmcrypt.dll into the winows/system32 directory
restart apache and voila!! it works now 🙂
i zipped the 2 files i used if anybody wants them:
www.8028finder.com/lauren/mcrypt-fix.zip
btw... im using apache 2+ and php 4.3.7
🙂