a macro lens on your camera is nice to have but it really isnt necessary. i can use the "AF" mode on my pentax optio w30 and get great photos.
use a tripod. it eliminates the shakes. dont have one, try a "bottle cap tripod" its easy to make:
http://www.diyphotography.net/the-su...tle-cap-tripod
read the manual. it has all the setting for close up work.
use plenty of light. one light on top and one on the bottom is good.
adjust the white balance for the type of light you are using. its in the manual on how to do that.
use a background that is pleasing to the eye. nobody wants to see the clutter you have on your tying station.
resize your photo using free resizing software or resize your photo using the tools in photobucket. a good size would be 600-800 pixels wide. posting a photo right out of the camera onto a bulletin board post id too big and requires the viewer to scroll up-down, side to side to view your photo.
use free photo editing software from the net. a good one is "photoscape". you can use this software to make adjustments to your photos and its good for cropping your photo as well. plus it does a whole lot more. just google it
when taking a photo, depress the shutter only 1/2 of the way down to let the camera focus on the subject. once focused, depress the shutter completely to take the photo.
almost forgot, read the manual
go to google and type in the box "macro photography" and search the results for more mind boggling info on the subject