how to resolve this cfhttp issue

Hi i had site url like this

http://test.com/123/files

and in files folder we have like 10-15 text files like test1.txt,test2.txt,test3.txt...etc

i am using this code to check files exists in server and if file exits then display this user with below code

<cfhttp method="get" url="http://test.com/123/files/test1txt"  />
    <cfset header = cfhttp.header /> 
   
     <cfif listContainsNoCase(header, "200 OK")>
        <cflocation url="http://test.com/123/files/test1.txt">       
    <cfelse>   
        <cfset request.proginfo.pagemessage="The  file  was not found."/>       
        <cflocation url="stest.cfm"> 
    </cfif>

I have a problem with this , if even my files are there in server i am getting message that file not exits but the file is there in sever and this happens some times and sometimes i am not seeing any error.

Is there any better way to do this as i am using coldfusion8 now.

Thanks