[Plugin: NextGEN Gallery] wordtube overlapping nexgen

Hello All,
I have installed both wordtube plugin and nexgen galley plugin. I have added both the widgets in the side bar. When i click on the pictures in the sidebar it starts the slide show. However I see the wordtube widget comes over the slide show. You can see that here https://www.fishesninverts.com. I am not sure whether I can post the screen shot here. Could not find an option for attachment.

Thanks,
Mohan.