Conditional Formatting Across Multiple Spreadsheets?

I'm trying to set up conditional formatting to show when an employee is both scheduled to be working for the current date, and is trained in a particular task.

I have a spreadsheet called "Training" for all of the tasks that employees can be trained in, with the employee names in each row, and the task names at the top of each column. The intersection of an employee's row with a task's column will have an "X" if the employee is trained in the task. This is the spreadsheet that I'd like to be formatted; if the employee is trained and also scheduled to be working, I'd like to the "X" to change to a different color.

There are separate spreadsheets within the same workbook for the schedule. This is a bit more complex since the since each week of the schedule has its own spreadsheet within the workbook; each spreadsheet is named for the Saturday of the week it is for, such as "06-07". I've been able to successfully have other formulas in the workbook auto-adjust to the current week's schedule by using variations on the TODAY function (something like INDIRECT("'"&(TEXT(TODAY()-MOD(WEEKDAY(TODAY(),1),7),"mm-dd"))), but I'm not sure how to incorporate this into conditional formatting. On each schedule sheet, there is a column for each day of the week and a row for each employee. The cell for a given day will contain the employee's schedule if they are scheduled, or it will be blank if they are not scheduled. So, the conditional formatting formula would just need to check to see if the appropriate cell was blank or not.