Finding Tmorph offsets

[Erminwow]

As you can clearly see in the headling im looking for a way how to find out Offsets for Tmorph.

Why ?

Simple. I'm playing on a private server called "Pandawow" which is atm on 5.4.8 (18414). Now we are talking about a private server so the Tmorph which was used back in 5.4.8 retail time doesnt work. ( it can't connect to the client means for me that the offsets are wrong.) The thing is i'm not even sure they also can have a custom Patch but well that's why i uploaded my client, in case someone gonna take a look at it .

https://mega.nz/#!jZQxXYTY!Y1UDoba-u...pL9twn75lZeHN0

^ used this tmorph.

Also if you need to know which client im using, here we go -->

https://mega.nz/#!hJ4znSzY!buCnuDAXp...aRs4lMMVhtWqA8

Now im wondering how can i update that file by myself. Did the same thing already with PQR back in times when i played on PTR but i guess that was way easier

Just wanted to ask here if theres a guide or if someone could explain it.

Thanks in advance for everyone whos trying to help