What's different between two methods of POWER?

How should I setup parameters in these algorithms?

Could I change parameters or algorithm by reconstructing phylogenetic tree?

Why do detail of POWER's output files different from my local program of ClustalW or Phylip?

How long can I get response?

Why would my job failed?

How many sequences would POWER tolerate?

Why don't I receive job mail return?

Can I using other multiple sequence alignment data format ex.*.msa or *.aln?