Sorry about the trouble. I wish I could look into it more, but I'm buried in work right now.
FYI, this tag is working perfectly for me in MODX 2.2.4 (not that that helps you any):
<p>[[!NewsPublisher?
&initrte=`1`
&initDatePicker=`1`
&rtcontent=`1`
&rtsummary=`1`
&show=`pagetitle,tb_send_date,ShowName,introtext,pub_date,unpub_date,published,content`
&captions=`content:Enter Your Post Here,FileTV:MyFileTV,introtext:MySummary,rt1:MyRt1`
&usetabs=`1`
&activetab=`Main`
&tabs=`{
"Main" : ["pagetitle","introtext","content"],
"Dates" : ["pub_date", "unpub_date"],
"Publish" : ["publish"]
}`
]]
</p>
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PLEASE, PLEASE specify the version of MODX you are using.
MODX info for everyone:
http://bobsguides.com/modx.html