a bit of advice needed and a bit of venting

[howdy20012002]

So, I went off to the airport last night at 11pm for my last shipment coming in.
When I got home, I started floating the corals.
I had a bit of time to kill while acclimatizing so I thought that I would deal with a leak with one of my tanks. It had been leaking at the bulkhead seal between the maintank and the sump below.
So, when I started to attemptto tighten it up abit when I hear a crack and drip drip drip.
I look up and see that I have managed to crack the glass between the downspout and the return hole. NOT COOL.
Being that there is the stand under most of the tank that extends everywhere except the very corner where the holes are for the bulkheads.
So I spent the next hour emptying the tank into my other tanks and yea..again not impressed. All that I have left in the tank is the sand bed and about 3 inches of water. I didn't empty it completely cause it was 3 in the morning and I needed to be up in a couple of hours for work.
My question is this.
if the crack is not that big, IE just around the holes, is it safe to try to somehow repair this?
it is a rounded corner tank that is shaped sorta like a 45 degree piece of pie. the holes being in the tip of the shape. If anyone knows the corner tanks that aquagiant sells, this is the 44 gallon one.
there is a wall that separates the main area from the area where the holes are. I am not sure if the crack extends beyond that wall. If it does, I think I am hooped.
If it doesn't any suggestions and how to fix this? would you attempt to fix this? or is it too risky?
My thought were to maybe cut a piece of plexy and glue it down over the cracked area and redrill the holes for the bulkhead?
the tank is like 6 months old and I just the first fish into it last week.
On another note, has anyone had any issues with aquagiant tanks? is there any warranty? as far as I am concerned the tank should not have cracked.
I think that I am going to call them and see if they will replace just the tank.
Any advice would be appreciated.
thanks
Neal