I am aware of the fact that PICAXE is a "normal" PIC just with added BASIC interpreter ..
And that "just" becomes the main "headache" ..
I think you will have to accept that fact and rather try to purchase one (or more) pieces of PICAXE-08M on-line from, for example: **broken link removed**
Also, I don't think anyone will be able to help you with assembly code(s) which will be excuted by a "normal" PIC in the same way as the TUNE command is executed by PICAXE-08M ..
well i dont want to buy them. If i can see some assembly code of this instruction then i will try to write assembly code for simple pic. Beside these controlleres does not have much programme memory. Only 80 lines.