Thanks for those. The saving error is valid, because the folder you're saving to (id = 41) is the Run Sequences folder for Moodle Test. It's the static copy of sequences used directly by running lessons, so it is read only.
As for the sequences not appearing in Moodle, I can't see any request for this in the lams access log. I do see the VerificationService call though. Does Firefox's error console show any javascript errors? (Tools menu -> Error console) Or does the Apache error.log show anything? You could also increase the debugging level in Moodle by going to the Server->Debugging menu in Moodle, and selecting the highest level (should be ok if it's not a live server).
Posted by Jun-Dir Liew