All your styles are cached by the system and can be found from:
http://www.dreamwidth.org/customize/advanced/styles

We're planning on revamping that page and making it more user friendly at some point (hopefully).

But the links list is, theoretically, separate from the Style, and shouldn't be getting lost, at all. This is a bug, and one I'd not seen before, it may be linked to free/paid status, but I forget off hand how many links a free account get.