I'm not sure what you want exactly but you can try looking at
spm_eeg_img2maps included in MEEGTools in the last SPM update.
2011/7/4 Jérôme Courtemanche <[log in to unmask]>:
> Hi Vladimir,
> Is there a way to plot 2D statistical results in more nice manner than the
> non-circular topographies? If not, it would be a good improvement I think.