1) I have the official fan site package. The icons are not in there. Furthermore, even if they were, the legal agreement that accompanies them does not give legal permission for use of any artwork to be used except for the purposes in making a fan site. Here's the legal agreement if you wish to read it in full.
2} Have you read either the Deadly Stream general site rules or our official policy or porting? If not, please do so. 3) You mentioned Torhead. They've given up their site but before they did, the had the links auto-forward to the official "The Old Republic" site. One could infer that they wish all further questions to be asked of Bioware. Have you considered just asked Bioware for written permission or guidance?