Primus: The one where Satchel first eats a fig newton. The punch line was something to the effect of “My mouth is in heaven.”
Secundus: A more recent strip, while Satchel and Bucky were staying at Rob’s father’s (?) house. Rob’s father (?) had given Satchel his fig newton, but didn’t know to warm it first. Satchel was disappointed but would accept it. (Doesn’t sound very funny, but the pathetic expression on Satchel’s face is needed.)
No, those links are no good. The United Media site only has 30 days of archives, unfortunately. I wish there was an official Get Fuzzy site. I love that strip.
The second one you’re looking for - where Satchell is disappointed because he gets a cold Newton - wasn’t in this guy’s archive (which is not really an official site.) However, the date of that comic is between 9/12/2003 and 9/15/2003. (Sorry, can’t find the exact date, but it’s one of those four days, you should be able to find it from there.)