Need help for data extraction

[ionstormbg]

Hi people,
I have a cool HW-like game called Project Earth. But it seems all the data is packed in one big file - projectearth.dpk 151MB. Any idea how to extract the models? 10X
I have one more question. Soon I have to buy inkjet printer. So can you give me a hint: wich one is good for model printing, works good with refills and nonoriginal cartridges? 10X again

[ionstormbg]

Well, nothing yet.
If this can help in anyway List of File Types gives me this for *.dpk :
".dpk file extension
Delphi Package. Project source code for a package. Similar in concept to a Delphi project file, but contains the definition for a Delphi Package."
BTW, some screenshots if anybody is interested:

[TheGlove]

Uhm, try this www.simulogics.com/downloads/downloads.htm ?

[ionstormbg]

No, not DKP. DPK. 10X anyway. I searched Google and I learned that MechCommander has a DPK Extractor. I also found these 2 topics and may be this is the answer. I'll have to read them, download this MultiEx Commander thing and see what will happen.
Anything about the printer question? What about Canon printers, are they good?
BTW, anybody tryed to make some Haegemonia, O.R.B., or Nexus ships?