@Hax
I have also contacted the Developer of the NextGen Plugin and passed on the info this plugin to him. I am not sure how something like this works basically these two do not play nice but in this instance are two very popular plugins among photographers. Nextgen is especially popular across work press in general.
I can say that it appears they are having a lot of issues with sites breaking after introduction version 2.0 which is a total rewrite.
Is this one of those lest see who bends first deals or are there times where you work with other develpers to determine a solution?
For the sake of trying to find a solution I will leave my test site in a broken state until I hear from either you or the NextGen plugin developer. Would you mind trying to look at my site at your earliest convenience to try and shed some light on where the conflict may be?
http://test.elizabethbphoto.com
I emailed you the login details to [email protected]