post hoc test and Aligned Rank Transformation

[Sebastien-6]

Hi all,
I have experiments with a two-way ANOVA design. The variances are not equal
and I used a non-parametric statistic to test the interaction: Aligned Rank
Transformation (ART) followed by a traditionnal ANOVA on the aligned rank
data. When the interaction is significant, I would like to do a post hoc
test. Is it correct to do a Tukey test on the aligned rank data or is there
a more specific test available?
Thank you.
Sébastien.