The same thing is happening to me -   the 3-of-5 isn't working.  I had a 2-of-3 work just fine this morning, but this afternoon, there is no way to get the 3-of-5 to work.  Is coinbin not coding the transactions correctly? (Tried with blockchain.info to push too)
Is my money lost for ever??? (   Thanks coinb.in...)  I hope that is not the case...
Thanks,
-Luc

I finally could test succesfuly with real money.
answering my own questions: the redeem script is given when you create the multisig address.
It's quite simple!!

Have made a tutorial in french.
Will translate it in english and post here.

Great work on this!

I've tried the service and a 2of3 worked great.
however, I tried something that I actually need right now in the form of a 6-of-10 and... no go
Getting a tx rejected -22 and log error says "nonstandard transaction: scriptsig-size" which I assume relates to the 500b limit mentioned earlier in the thread.
Is there a way to make this work?
Reading around in some other discussions I saw being mentioned that even a 15 of 15 should work, so I'm a bit confused as to why 6 of 10 doesn't.

Also OutCast, on a side note, it would be really great if you could provide the non-minified bitcoinjs code (either as a download here or in the git repo) as part of the opensource approach.


Thanks!