[Newbies] can't find sources

[LordGeoffrey]

Hi I downloaded squeak and it can't find the sources.

In my working directory i have:
 Squeak3.10.2-7179-basic.changes
 Squeak3.10.2-7179-basic.image
 SqueakV39.sources.gz

/usr/local/lib/squeak/3.10-1
 squeak         
 SqueakV39.sources.gz
 etc

I tried gunzipping the sources but apparently its not a zip file.
I am unix (Ubuntu). Any suggestions?

Thanks.