Genrating GIF files

MSPaint isnt exactly going to cut it but for the lack of anything better you can use it. In any case its not rocket science. Open a new canvas, use the tools provided in your toolbar and paint/design what you need/want. Save or export as a JPEG or GIF.

As Weed said, creating a GIF or JPG image is as simple as saving (or exporting, depending on the software) the file as JPG or GIF.  Some less mainstream programs don't offer GIF because that format requires the software makers to pay a royalty.  I'm not on a Windows PC right now so I can't check MS Paint and Imaging for you.  But if they don't offer GIF as an option, you could convert your image online here, then right-click to download the resulting image to your computer:

http://webservices.adobe.com/save4web/

For logos or other images with few colors, GIF will more than likely turn out to be the better choice in terms of file size for the quality you get.  For photos or anything with gradients of colors, use JPG.

Either way, you have some options to set when you save that affect quality and file size.  With your logo, I imaging you'll want to chose GIF, no dither, and as small a number of colors as you can without altering the look of the image.

Good luck,
DCS

Thanks a lot for replying. But I had one more doubt about the clarity and sharpness of the picture which we try to draw in Paint. Using mouse, its kind of painstaking job to design some good picture in MSPaint. So in that case, what should I do?
Thanks.

Would you like to explain your grading?