Old versions of The Rogue Rebalancing Pack should be installed before Amber. I haven't tested it, but it's possible that this issue has been fixed in the new version of The Rogue Rebalancing Pack (v3.5).
What exactly was/is causing a compatibility problem between RR and Amber? I'd like to resolve this in the upcoming v3.6 if it's still an issue.
The previous versions of the RR overwrote the black-market thief's (located in the thieves guild entrance hall) dialogue file. Amber appends that file and if she's installed first her changes are lost and one of her quests won't work. The issue was discussed in this thread. When the issue came up RR seemed to lack current support and that why I didn't contact you then. I haven't yet checked the current version of the RR to see if the issue has been fixed, although the version history mentions that overwriting has been fixed for this version.