Hi Heather,
Just a small point about your code. The Database URL is concatenated with the relative URL from your InoReplaceChild to make a complete URL to the document to be updated. In your case the collection seems to be missing. Just put the collection name on the front of the relURL like this:
oTamino.InoReplaceChild “collection/rptdocument/@1”, “rptdocument/viewable”, oDOM
But if this change doesn’t help, take a look at the FAQ because you may have problems with the version of MSXML you are using, or with the way NodeLevelUpdate is installed.
HTH