I have a 2003 X2.Should be the same as your 2000 xstar.
X-1 Texas is right there are no screws holding that part of the floor down.
There are 4 bolts that hold the center section of the rear seat base togethor I removed those bolts and pryed up the seat base this will give you alittle more room to work out the panel.
Heres a pic.
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