Sometimes you have some addons without readme file so here are basic instructions for you
1. you have a Aircraft,weapons folder in your object folder in WOE, c:/WOE/Object/Aircraft <---example you copy after unziping the file your Aircraft, "Typhon" into this .../object/Aircraft folder
2.Pilots have to be put into the aircraft folder too, but you don`t nee another folder cause u can use them for every plane so put the lod and BMP files into this folder.
3. Add weapons to the sim, u need the weapons editor, instructions included, if it doesn`t start.. go to weaponseditor, right mousbutton for settings and set compatibility to Win98 2000 I think not sure and it will work.
Adding weapons is described in the readmes. When you have add a weapon via described prcedure you have to start the weaponseditor and load the weaponsdata.ini can find this in the weapons folder. Load it.. and save it so the weapon is verifit in this ini and you can load it in the sim.
This text needed more time to write than adding an aircraft,pilot and weapon needed together!!! so no big deal.. good luck!