Answer to question #1
First I recommend to download the FMC tutorial from Wilcopub:
ftp://ftp.wilcopub.com/767_FMC.pdf
Do the tutorial flight, if you don't feel comfortable after, do the flight again and repeat it as long till you know all flows by heart
But now back to your approach.
Example:
Cologne - EDDK, LOC-VOR approach for runway 32R
(Jeppesen Approach plate from the 4th Sept. 1998)
Your IAF will be KBO VOR (112.15) and let's say you arrive via the "Germinghausen Two Victor (GMH.2V) STAR.
So your LEG page on your FMC should look like that:
GMH ---/5000
253° 24nm
WYP 170/3000
------
Now you need to enter your IAF (Initial Approach Fix) which will be KBO.
Type
KBO below your last waypoint (WYP)
GMH ---/5000
253° 24NM
WYP 170/3000
205° 12NM
KBO
------
Now comes to fun part, our approach plate wants us to leave KBO on a 119° outbound radial from KBO and that for 10.2 nm
(KBO R-119° D10.2 )
Do enter this imaginary waypoint we type:
KBO119/10.2 on our scratchpad and then we click on the left LSK (Line Select Key) below KBO.
Our FMC should read as follows:
GMH ---/5000
253° 24NM
WYP 170/3000
205° 12NM
KBO ---/----
119° 10NM
KBO01 ---/----
------
Next waypoint is (KBO R-139° D9.2)
Be careful, on the plate it says only D9.2 KBO, but the 9.2 waypoint is depicted on the 319° inbound radial!!! But we always need to enter an outbound radial, so it's 319°-180 =
139°
We type
KBO139/9.2 into to scratchpad and click on the left LSK below KBO01
GMH ---/5000
253° 24NM
WYP 170/3000
205° 12NM
KBO ---/----
119° 10NM
KBO01 ---/----
235° 4NM
KBO02 ---/----
------
We can now finish our approach by adding the LOM (Outer Marker Beacon), which is 5nm from KBO, so we type:
KBO139/5 or just type
LV for the LV NDB (327) which is identical with the LOM here.
Finaly you can chose runway 32R from the DEP/ARR page and now your FMC looks like this:
GMH ---/5000
253° 24NM
WYP 170/3000
205° 12NM
KBO ---/----
119° 10NM
KBO01 ---/----
235° 4NM
KBO02 ---/----
324° 4NM
LV ---/----
318° 4NM
RW32R ---/0301
------
Almost perfect, but even better with the appropriate altitudes, speeds depend on your weight and flap settings.
GMH ---/5000
253° 24NM
WYP 170/3000
205° 12NM
KBO ---/3000
119° 10NM
KBO01 ---/3000
235° 4NM
KBO02 ---/3000
324° 4NM
LV ---/1680
318° 4NM
RW32R ---/0301
------
Have fun
Sam