I like to use the upside down technique for nice straight top edges and sides.
http://www.cakecentral.com/article6-Upside-Down-Icing-Technique-for-Perfectly-Smooth-Icing.html
I clicked on your photos button, but no pics came up so I'm not sure how "bad" you perceive them to be. (We are our own worst critics, ya know!)
All of my cake are BC and I totally believe in the Melvira Method (home page - under articles). the BEST method for smoothing BC!
I like the melvira method too, try that and try the viva paper towel method and the computer paper . . . sugarshack wrote a great forum on this . . . .let me find the link . . . .
http://forum.cakecentral.com/cake-decorating-ftopict-19948-buttercream.html+tips
it takes so much practice so just try all the different methods til you find what works for you. Good luck!
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