I can't figure it out....

Hi All...

I'm new to Dangerous Waters....

I installed DW from Steam on my d:-drive, it's now 1.04 and start experiencing DW. I found and downloaded DWX1.5, I cant found the latest download Reinforced Alert.

Five Questions:

Do I need DWX1.5 and/or Reinforced Alert????
What is DWX1.5 and what is Reinforced Alert???
Where to download the latest RA?

Thank You,
easy