In the code, the results from yahoo are downloaded to a temporary directory on your server and then used.

This might work… create a new directory on your server, in a place you ‘own’. Then modify the code on line 109 from
$tmpquotename = tempnam(“”, “inlinestockquote”);
to
$tmpquotename = tempnam(“/YOURNEWDIRECTORY”, “inlinestockquote”);

If that doesn’t do the trick, take a look at this post describing what is going on with a different piece of software:
http://drupal.org/node/182058

Let me know how that goes. The plugin doesn’t ‘need’ to use a temporary file, so as a last resort that could be removed and the code could be modified.

Warning: fopen(): SAFE MODE Restriction in effect. The script whose uid is 10020 is not allowed to access /tmp/inlinestockquote8eHnlG owned by uid 48 in /var/www/vhosts/simplesimple.ca/subdomains/secure/httpdocs/wp-content/plugins/inlinequote/InlineQuote.php on line 111

etc etc

thoughts? i’d love to use this.