Can a captor still use his special abilities if he has a captive like: regeneration, magic healing, or healing?

A captor can only be given a "Move" or "Pass" action. If the SA is a Speed SA or one of those that say "gie this figure a Move ation, but do not move him", such as Necromancy or Regeneration, you can still use it.

Hmm. How would you use Necro. Captives aren't friendly or opposing to anyone so who would they raise? Just curious. Might be fun to resummon your killed Storm Golem right next to your captor :D

Captor is the figure which has a captive. Still able to use abilities which require a Move action. (but still cannot use Charge)

Captive is the figure which was bonked on the head, and now docilely follows your figure around.

yup yup yup ...

Hi,
If the Captor is demolarized, does the Captive being released?

No. Demoralized prevents a figure from coming into base contact with an opposing figure, and reduces the action options to "Move" and "Pass". There is nothing about being Demoralized that prevents a figure from holding a captive (other than the fact that he's probably going to get killed soon and lose his captive that way...:D )

NO, he won't release it's captive just yet ... :)
just give him a move and pass, until he expires or reach a berserk or battlefury or INVUL slot :) otherwise all condition is still considered true ...

NOW for my question ...
does a CAPTIVE affect LoS(Line of Sight) to the CAPTOR??? i'm still 50/50 with regards to this, as i want a concrete answer ..

Yes. A captive figure still exists, and will block line of sight through it's base. Just like any other figure.

another question:

can 1 FIG with 0 or very low attack rating make a capture attempt???
e.g.
- if the fig with 0 attack rating rolls a 12 or a critical hit,
- if the fig that makes a capture attempt and needs 13 or better to make the capture successful, and he rolls a 12, does it automatically make the capture attempt a success?

Yep, you can still roll a critical capture. I remember back in the day, before they changed command when a 5 point Imp could capture a 145 point Hierophant......

It's called a 'critical hit'. Might want to check your rulebook on that one. :D

The only thing that will prevent a figure from making an attack is being Demoralized. Flesh Golems spring to mind...

Note, multiple dial figures cannot attack with a 0 attack rating showing.

yes, i know about critical hit ...
{{e.g.
- if the fig with 0 attack rating rolls a 12 or a critical hit, }}
as i've stated earlier ... :D

and why can't an MDF with 0 attack rating make an attack even on a critical hit (i know that MDF can't and cannot capture) but what prevents it from attack even on a critical, just like normal/regular figs

MDFs can't attack unless they have an attack value greater than 0: it's part of the basic MDF rules. If you're wondering whay they made that the rule, I have no idea :D

Probably because skulls typically appear in the attack slot on multi-dial figures before they appear anywhere else, and skulls appearing on sections that are still active are treated as 0. This is supposed to reflect sections that aren't destroyed yet, but have been sufficiently damaged as to be unable to attack.