Having problems getting IRFs

hi,dear all~

I try to use dynare 4.2.0 to replicate the results of the paper written by Ireland(2003),especially the IRFs. Unfortunately, the IRFs I get are much more different from those of Ireland’s and i can’t figure out why. Could anyone help ??
I have attached the mod. file written by myself and Ireland’s paper, as well as his prigramme notes(Ireland got the IRFs using m. and mat. files, which,as we all know, are different from the mod. file ).
notes.pdf (189 KB)
Ireland.pdf (398 KB)
est6.mod (749 Bytes)