How do I
1. Program the registers for continous transmisson.

If you want to send the data as a packet, it is difficult at best. It's similar to filling up a bucket with water and when it gets to a preset level, the bottom drops out to empty it. The only difference is that it adds a CRC at the end. You can turn it into a transparent transmitter that will just send out anything you put into it, but you lose a lot of good reasons to use the CC1100 in the first place.

2. How do I program the PA_Table. Is it necessary.

The PA table is for power ramping in OOK or ASK. I guess it is useable in very restrictive areas for spurious reductions. Only the first address is used for normal use. Just input the value on page37 for the power level you choose.
Set FREND0.PA_POWER to 0 to choose the first register. PATABLE is $3E.
RXFIFO is 3F + $80. This is one of those gotchas. Get the transmitter working before you pull any hair out over receive. When you get a chirp, move on.

3. In the abscence of GD0 and GD1 Pins How do I provide an interupt to the MCU for a received packet in the buffer.

I believe GDO1 is presented as SO to you. When CS goes high, it becomes a general output. If you change the register data to $07, it will go high when a valid packet is received.