Would like to draw arrows in MS paint

I am relatively new to Paint. I would like to draw arrows - add arrowheads to the straight and curved lines that I draw. How do you do it(not by drawing manually). ?

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows XP Home Edition, Service Pack 3, 32 bit
Processor: Intel(R) Pentium(R) M processor 1.60GHz, x86 Family 6 Model 13 Stepping 8
Processor Count: 1
RAM: 502 Mb
Graphics Card: Mobile Intel(R) 915GM/GMS,910GML Express Chipset Family, 128 Mb
Hard Drives: C: Total - 71186 MB, Free - 51105 MB;
Motherboard:
Antivirus: Microsoft Security Essentials, Updated: Yes, On-Demand Scanner: Enabled