It might be worth your while to consult the Knowledge Base articles just to be sure you are up to speed on the avialable mods etc. In particular there is a specific mod to eliminate the radar display form the upper right corner. The knowledge base initial setup guide is found here:
http://forum.combatace.com/index.php?showtopic=8786
Screen shots: As already mentioned, using the HUD key, one can cycle through the three HUD configurations to eliminate the onscreen text, target boxes, HUD info, etc. I usually hit Pause before taking a screenshot so that I can fiddle around with camera angles and make the HUD changes.
YAP: I highly recommend trying some YAP missions. Yes, they are payware, but they are very reasonably priced and they have a ton of add on planes, objects, weapons, etc. The missions themselves are historically accurate and very, very intense. Much more realistic and intense than anything the ingame mission generator can come up with. One of the things I like about having YAP is that the airfields now have some life to them with lights, parked A/C's, trucks moving around, etc. YAP also has new target locations in Cambodia and S.Vietnam. ONe of my favorite YAP missions is flying a C-130 to Khe Sahn and dropping pallets of supplies while under heavy fire. You can't do that with just the regular WOV.