I will get you started,
I am sure you know hindi so it is just a matter of learning the sounds of the letters.
First of all we have accents instead of vowels for most words. So just place consonants next to each other and we'll know what you mean. As in tum is just TM.
Following are some of the main words and there sounds.
ا A, this is pretty much used as an A.
ب B, this B
پ P,
ت This is T as in Tau Kya Hua,Teri Maa, tum,
ٹ T, Tumaatar, Taklu
ج J
چ CH, Chacha Cricket
خ Kh...as in Khan the greatest caste in Pakistan
د This is Dhaal as in the stuff Indian fast bowlers eat
ڈ This Daal as in Sreesanth ko Dhaal Daal
ر R
ڑ This is R as in GuRia, stuff Akhtar plays with
س S
ش SH
ض Z
ف F
ک K
گ G (never used to make the J sound, G as Gadha, word used to describe fast bowlers from Pindi)
ل L
م M
ن N
و W
ی Y this is used as a Ya sound and used as a vowel like ee, AMEE
ے Y this is used as a Ya sound and used as a vowel to make the AY sound, as in GAY
Now type some message up and we'll teach you the finer details from there.