Problem with displaying float

Hello to Everyone
 
İ am using pic18f4620 and mplab c18. İ am trying to display float and it is working in such values 5, 5.17 or 5.177  but when i am trying to show 5.05 it is displaying 5.5. İt doesnt show 0 if it is first after point. a few sample 
 
Real Value                       Displayed Value
4.006                                4.6
2.01                                  2.1
 
and i know why it is working like this, in mplab c18 sprintf function doenst support to float--->string conversation. and in microchip support they are offering a code so that code is working like this. İt is not working well. Here is the code below
 
void display_float_t(float x){
    char buffer[100];
    unsigned long x_dec=0;
    long x_int=0;
    x_int = (long)((float) x);
    x_dec = (long)((float)x*1000)-x_int*1000;
    sprintf(buffer,(const far rom char*)"%li.%li", x_int,x_dec);
     lcd_string( buffer);
}
when the result of the  "x_dec = (long)((float)x*1000)-x_int*1000;" is starting with 0 like 07 or 007 it is taking it like 7 and displaying 7. so if anyhow would help me to solve this i would be so glad. Thanks for your helps. 
 
 
Best Regard
 
Aslan OYMAK
 
 
 

thanks for replying;
 
i tried what you offered but it didnt work. i made a fuction and it is working perfect. i am sending it now
 
i hope it help peoples who needs that.

I believe your code will fail to handle negative numbers; adding fabs() from math.h for the fractional part solves this.  Since your variable is unsigned long type, you need to use %03lu for the fractional part; %03u works for unsigned int type.  Try this:

    char buffer[100];
    long x_int=0;
    unsigned long x_dec=0;
    x_int = (long) x;
    x_dec = (long) (fabs((x - x_int)*1000) + 0.5);
    sprintf(buffer, (const far rom char*) "%li.%03lu", x_int, x_dec);

Yep
but with fabs(), like Ian   1And0 (sorry ) also suggested above, it should work... doesn't it?

Sorry, it was you - somehow I tend to give credits to Ian by default
Now I get the thing about -1 .. 0 - will do some test as I happen to need it! thanks