Never fear, Swoop is here.
er, (TM).
Have a look at the dir structure of the Op flash directory (under /Codemasters in /program files). In there you've got a dir called Addons. Also one called Res, under the Res folder there's a second Addons folder.
Most addons come as a .PBO file, these you can just copy straight into the Addons folder (either, doesnt matter which one) and they'll be available in the game next time you run it. Some Addons are incompatable with other Addons so try to keep track of what you put in the Addons folder and if you get any errors take out whatever you just put in there. Also, when you copy a new addon in you may get errors on existing addons, OFP will give you an error message stating the name of the .PBO file that's causing the problem so you can decide whether or not to remove the Addon you just copied in or the one that's incompatable with it.
Some Addons have their own install progs but most of the ones I've seen are kinda crap and require some manual installation cos whoever wrote the install exe is a avacado and shouldnt be allowed near a PC.
Sorry Hort, I cant post ya any links to WW2 sites as I'm sat in a netcafe cos those bastiges at KPN wont install me a phoneline to the new flat until wednesday.
As for the crashing, do you currently have any Addons installed? if so remove them and try again. If not then have a look on the
http://www.flashpoint1985.com forum / FAQ / troubleshooting guide and if there's no answers for ya try posting on the BBS. Also, the Avon lady's FAQ is prolly better than the official one, you'll find links to it all over the f1985 forums cos she's a moderator there.
Oh BTW, most addons come with a readme file that'll tell ya how to install......again some of these readme files are written by complete numpties but it's generally just a case of unzipping and copying the .PBO file to the Addons folder.
GL bud.
Swoop
(cant be arsed to look up the link to the sig)