Hi,
1&3) Check from
here that the IK plugs and Reason you're missing have the right versions installed. If not, get rid of the old versions and install the new ones instead.
2) Go to your System (Macintosh HD)->Applications->Digidesign->Pro Tools-> right click (or ctrl+click) on Plug-Ins alias->Show original. There you'll find the Dynamics and EQ II.
Hope this helps!