I'm a few versions behind so not sure this is still relavent but I couldn't see anything in the changelogs so here goes.
When you set up a scheduled weekly task and select a day of the week, AwareIM generates the following code
IF CURRENT_DAY_OF_WEEK=7 AND .........
The task never triggers. The code should be (and it's clearly defined in the user manual)
IF CURRENT_DAY_OF_WEEK='Saturday'