Domain Module issues

I'm having some issues with the D7 Domain module. Not necessarily specific to BOA (maybe also evident in just plain old vanilla Aegir).

Firstly, when I create a new site in Aegir, it needs to be created in a D7 platform that does not have the Domain Module installed. I then migrate this site to a different platform that does have the Domain Module.

Secondly, The Expire Module doesn't seem to play nice with the Domain Module:
- Fatal error: Call to undefined function db_fetch_array() in /data/disk/octopusname/static/platformname/sites/all/modules/expire/expire.domain.inc on line 15
AND (when Expire is disabled)
- Recoverable fatal error: Argument 2 passed to db_query() must be an array, string given, called in /data/all/002/o_contrib_seven/expire/expire.module on line 700 and defined in db_query() (line 2313 of /data/disk/octopusname/static/platformname/includes/database/database.inc).

Re this second issue, the custom platform has its own versions of Expire and Purge installed. I'm not sure if this is the cause issue, or because some kinda "hot sauce" behind-the-scenes magic is at play.

I notice that disabling these modules remedies the issue, but they are reneabled. Deleting them seems to see them reinstated.

I guess that there is something I need to do to isolate the custom platforms, or perhaps I should not be including Purge and Expire modules in my make file? Again, the issue is specific to sites that utilise the Domain module.