Can someone show me the routines for them? i tried the ones in the routine section, but it's not working.

Do you mean how to use them in Axe code or how they are coded in Asm?  I'm sorry, I'm a noob when it comes to programming words and phrases  

He's asking for an example method in Axe.

He's asking for an example method in Axe.

Thanks! I don't know how to use Instring(, but for sub(, you use it to create subroutines.

Axe
.After you store constants, you create subroutines, like:
sub(AA)
Repeat getKey(15)
.Code code code
sub(AA)
.This executes the subroutine
.code code
End
Return
.The Return ends the program so that the subroutines aren't executed after the Repeat loop ends
Lbl AA
.Code for subroutine
Return
.The label tells the parser where the code for sub(AA) starts, and the Return where it ends

I hope this helps, I know it's a little rough.  I can post something that actually does something, not just a general example if needed.  Good luck, and may the ram clears be few!

EDIT:
I looked around, and for inString(, the synax appears to be inString(BYTE, POINTER) and it "Searches for the byte in the zero-terminated data. If found, it returns the position it was found in (starting at 1). If not found, 0 is returned."
This is strait off of the documentation for every Axe command in the zip with the parser

Do you mean what does sub( do in Basic?

 Wow... I was off of the question

Sorry, I read the question differently.

The location where you would be copying the substring to in memory terms.  Just put a pointer to some free chunk of memory there and you'll be set.

Here are some implementations I whipped up to act just like the TI-BASIC string functions. The instring function even has the optional third argument! However, note that the substring function should probably not be used to create substrings over 255 characters long, and definitely not 0 characters long. Also, the optional third argument for the instring function should not be longer the length of the string being searched. But other than that, they should work perfectly!

You can get a bit more information about the functions and download the ready-to-go Axe library here.

Lbl SUB
 Copy(r?+r?-1,?8000,r?)
  and 0?{r?+?8000}
Return ?8000

Lbl INS
 If -r?
  r?-1
 End
 +r?
Lbl INL
 Return!If {?r?}
 If Equ?String(r?,r?)
  If {}
   r?+1
   Goto INL
  End
 End
Return r?-r?+1