' is a XML entity for quotes I believe. The problem most likely is due to Simplepie skipping it among the characters it should decode.
Inside main.php, the below line is what outputs the actual contents of each RSS entry to be shown:
Code:
outputbody($item, $templatename); //call custom outputbody() function
You can try doing a search and replace of ', and replacing that with a normal single quote:
Code:
preg_replace(/'/, "'", outputbody($item, $templatename)); //call custom outputbody() function
Untested, but that's the general idea at least.
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