I couldnt get a sense of wheater you were referring to your Personal statement which you are going to send with your 'additional postal documents' to the CAO or just a college application??? But if you are referring to the CAO, all i can tell you is the advice which iv been given and what I personally did, which is this ;
On the CAO,as im sure you know if you are completing it, there is not alot of room in the various sections to write what you want to write, for example in the Hobbies/Interests section you only have 200 charachters-which is nothing!and in the personal statement box only 1000! So under each box on section B, written in really small print is ; ''If the space provided is insufficent, you may include the extra information with your postal documents''
So what I did was filled out the following sections on PART B of the CAO form as their was plenty of room for them;
-Final Secondary Level qualifications awarded
-Post secondary level qualifications awarded
and for the following sections, where I felt there was not enough space to write what i needed and wanted to say, i wrote in the boxes ; Please See Postal Documents for...
-Hobbies & Interests
-Explain relevance of your life/educational experience to the course your applying to - aka your personal statement
So what iv done for the ones i wrote 'see postal doc's in, is i have written a parahgraph about my hobbies/interests which i am making relevant to the courses im applying to (which is social care), a paragraph about Voluntary/Unpaid work and for employment i am sending a copy of my CV and then obviously the personal statement is about 1 & a half pages long. The advice I got on how to write a personal statement was basically to deal with the actual question thats on the CAO form (Explain the relevance of your life/educational experience to your application and state your educational goals and objectives) and to keep in mind when writing it;;
1-Where you come from
2-Where you are now
3-Where you would like to go.
You should try and answer everything on the application and put in all the information you feel is relevant and that will give the persons reading your application/personal statement reason to take notice of it (afterall they will be going through thousands of them so you want yours to stand out!) instead of leaving something out because you presume it will come up in your interview as you have to remember that not everyone is actually called for interview-you have to make sure your application makes the college WANT to interview you, so that you can then get a second chance to sell yourself!
Thats the general advice i was given anyway, I hope it will be of some use to you because as i said at the beginning it wasnt clear from your original post if you were even referring to the CAO or not!
Good luck with it all!!
P.s-There are examples of personal statements on the net if you google it you should find some as that may be of help to you-to see what way other people do them!