Trying to set up a Partner battle, Not working. Requesting assistance

[Derxwna Kapsyla]

I was trying to set up a Partner Trainer depending on the starter you picked, and I wasn't sure how to go about it. So in my efforts to wing it, I did a:
"If Starter Chosen Variable == 1
Add partner: 4
Else; Starter Chosen Variable == 2
Add partner 5
..."
And so on and such forth.
Problem I'm running into right now is this

Spoiler:

---------------------------
Touhoumon Essentials Development Kit
---------------------------
Exception: RuntimeError
Message: Script error within event 15, map 93 (Oak's Lab):
Exception: SyntaxError
Message: (eval):2:in `pbExecuteScript'compile error
(eval):2: syntax error
***Line '(PBTrainers::SCRenko_Sanae,"Renko")' shouldn't begin with '('. Try
putting '(' at the end of the previous line instead,
or using Extendtext.
***Full script:
pbRegisterPartner
(PBTrainers::SCRenko_Sanae,"Renko")

Interpreter:276:in `pbExecuteScript'
Interpreter:1599:in `command_355'
Interpreter:494:in `execute_command'
Interpreter:193:in `update'
Interpreter:106:in `loop'
Interpreter:198:in `update'
Scene_Map:103:in `update'
Scene_Map:101:in `loop'
Scene_Map:114:in `update'
Scene_Map:68:in `main'

I have been unable to figure out how to fix it after struggling with it for a good portion of 4 hours. I see that "ExtendText" is mentioned, and I've tried following the instructions provided in the ExtendText.txt, but it didn't seem to do anything. Perhaps I was using it wrong, I'm not sure.
If there's a way I can fix this, can someone please tell me? It'd be greatly appreciated. Thank you in advance!

 

[Pokemon 3000]

Your script is longer than one line. A line shouldn't never beginning with an "(". Try this:

pbRegisterPartner(
PBTrainers::SCRenko_Sanae,"Renko")

I'm not sure what you mean with extendtext, but if you want to activate it, you simply must open the .exe. The textbox will then expand.

 

[Derxwna Kapsyla]

You are a lifesaver, thank you very much! On the note of ExtendText, I don't know why, but Extendtext.exe just doesn't seem to work for me.

 

[Nickalooose]

Right Click Extenedtext.exe, properties, then set administrator, problems with Vista and what not.