At first I would make sure the csv file exsists!!
If it does, then try the following wo suggestions. I lack a great deal of knowledge in this area, but I thought I would give you some ideas.
<OBJECT ID="tdcStaff" CLASSID="clsid:333C7BC4-460F-11D0-BC04-0080C7055A83" codebase="test.csv">
<PARAM NAME="DataURL" VALUE="
http://whereitis.com/test.csv">
<PARAM NAME="UseHeader" VALUE="True">
<PARAM NAME="TextQualifier" VALUE=",">
</OBJECT>
it would be
http:// or
file:// depening if online/offline. Sometimes it is picky, and you may happen to have it ina different folder and did not realize it.
if that does not work I would just goto the basic form of it and try this:
<OBJECT ID="tdcStaff" CLASSID="clsid:333C7BC4-460F-11D0-BC04-0080C7055A83">
<PARAM NAME="DataURL" VALUE="test.csv">
</OBJECT>
And see if that works. If not, then I just wasted some of your time!
Eric