Illustrator logo problem

Hi folks,

I have never used Adobe Illustrator before, but im updating a website i made and wanted to put the logo into illustrator and make it a vector. When i use the trace button it works great…but its a little out of shape…i wanted to make it more like the original. Sharp lines, instead of…erm…wavey lines (if that makes sense). Its a simple logo, circle with text in the middle.

Thanks in advance!