Its crunch time... well past crunch time

Okay, Henry, first things first.  Rela-a-ax, man.  It's going to be alright.  It's your first tri, and the most important thing for you to do this time out is to have fun with it.

If I were you, what I would try to do this week is keep my regular workout schedule until Thursday, even a little on the light side.  Then take Fri/Sat as rest/recovery days.

As for carbo-loading, sure, go ahead and have that plate of spaghetti.  Just don't overdo it.  From everything I've read though, of more importance is what you eat the morning of the race.  Don't go drastically out of your normal routine.  It'll screw your body up.  For my first sprint, my pre-race breakfast wasn't that different from my usual; 1 cup of oatmeal, 3 tbsp raisins, 2 tbsp chopped walnuts/pecans, and 1 tbsp brown sugar.  Washed it all down with a cup of tea and a cup of orange juice.  In T1 I grabbed a banana and a hydro-pack of Gatorade.  (I'm not coordinated enough to grab those bottles and drink while I pedal.)  In T2 I grabbed an apple and another Gatorade.  That was enough to get me through, even though my first race turned into a duathlon that took me 3 hours to complete.

Number One Rule, it bears repeating, have FUN with it!

Leatherneck is right -- relax!  

There's a bunch of concerns packed into your post...

• Training:  If you've been training hard for a while, and just missed out on the last couple of weeks -- but you're still running -- I wouldn't worry at all.  Your cardio strength won't disappear overnight.   Before my first sprint, I was healthy but still did nothing at all for 3 days before the event, and nothing too strenuous for 7 days.   Consider it a taper!
• Sickness:  If I were in your shoes, I'd focus on getting better -- lots of sleep, light workouts (at most).     That will impact your performance (and for that matter, your mood) far more than trying to train hard this week.
• Advice for a first sprint in 7 days:  At this point, don't try anything new or fancy or over-strenuous.   Only things I would think:
• Maybe practice a short brick if you haven't already, just to know the sensation of running on jello legs
• Practice a transition
• If you're planning to buy trishorts -- get them soon and try them out.  (Nothing new on race day!)
• Read through race reports for others who have done their first sprint -- this may help enormously to ease the jitters.    (Read mine if you want -- just click on "Races" below my post)
• Read through the race registration information -- just to make sure you understand the rules, the course map, etc.  Knowledge is power.

As for food -- I did the following:

• Pasta and sausage the night before -- regular portion, don't go overboard
• For breakfast -- peanut butter toast, banana, and orange juice
• During the race -- nothing but water.  Maybe a tiny cup of Gatorade at the run aid station.  For a sprint tri, I didn't find it necessary -- and I didn't want to risk the cramps etc.  (and I was a slow sprint -- nearly 2 hours)     I never trained with food -- will need to experiment with this a bit prior to my Oly this June.