HELP - Synthetic Seismogram on Petrel

Hello everyone,
Can anyone help me to build a synthetic seismogram on Petrel??
I'm working on the default input data of Gullfack Reservoir, and following the Manual of Petrel 2009.
I can't import the checkshot (.txt) file ... I've tried in many ways, also following different manuals ..
I can't also import the velocity files (.dat) and therefore I can't buld the velocity model ...
Maybe these files are not set up correctly ...
Can anyone help me?
Maybe you have the original default data?? I just need check-shots and velocities (file .dat)
Many thanks in advance

Vale

I think that when you download the project from the SIS support portal you get this data pre loaded. You can always export and re-import it then...

hope this helps as I do not have the files.