http://www.turkishlanguage.co.uk/ Here,I find so much tenses and not tenses(I don´t know how would i call them),and that´s not a problem to learn for me,but the problem is that in Turkish series and movies I heard a more of them tenses,which there aren´t there. Like izle+mek+te+personal sufix TENSE(I don´t know a name).
Selam veriyorum. 

Here are links to 2 posts that might help you understand

http://www.turkishclass.com/forumTitle_402

http://www.turkishclass.com/forumTitle_49926

One of the difference between -Iyor and -mAkta is ;

* Iyor can be used to refer the future actions  whereas ;

  we can NOT use - makta form to refer the future actions.

- Yarın kursa gidiyorum

but we can not say -Yarın kursa gitmekteyim.

so with -iyor the action does not have to start as it can start happening in the future

but with -makta  the action has to start happening.

Çok teşekkürler,inanıyorum ki şimdi herşey anlıyorum.  

The usage of this form in daily life is limited.

we can see its usage in such situations below ;

* To state the general facts or opinions that are open to debate ;

Türkiye´de sigara içenlerin sayısı  azalmaktadır.

The number of smokers in Turkia are getting less.

* In Religious scripts ;

Bir de iman edenlerle karşılaştıklarında: «Biz de inandık» derler. Kendi şeytanlarıyla baş başa kaldıklarında “hiç şüphe etmeyin ki biz, sizinle beraberiz. Biz ancak onlarla alay etmekteyiz.” Derler. (E. H. Yazır, Kur‟ân-ıKerim Türkçe Meali ] [Bakara 14]

* In literary texts

* In advertiments,noticements, offical texts

Bizimle çalışacak genç ,dinamik ve hırslı arkadaşlar aramaktayız.

We are looking for young , dynamic and ambitious friends to work with us.

Ankara Üniversitesi olarak Vyana´ya  bir gezi planlamaktayız.

We, as Ankara Üniversity, are planning a trip to Vienna.

* It can be used as English present perfect continous tense .

She has been working at that company for three years.

Üç yıldır o şirkette çalışmakta[dır]. [ çalışıyor]

* It can be used with participle -An [ with´olan´ form].

 Verb stem + makta olan

1. Yaşlanan ağaçlar ........................

The aging trees [The aged trees or The trees that will age] .................

Here, it is not clear that if the aging process over [past] or progressing or it will happen in the future.

2. Ya  şlanmakta olan ağaçlar............

The aging trees..............

Note that here aging process has already started and still progressing  !

Thanks a lot, Tunci, for your explanation!

We don´t like "makta" as Turkish teachers. At least I don´t like it

Wonderful tunci,thank´s a lot !
@gokuyum,so you never use makta? 

Gökuyum, senin -mAkta ekini sevmemekte inat etmene hak vermekteyim.

I try not to use it. Because it is the same thing with saying that "I am in coming" instead of "I am coming" in English.