I'm sorry to hear that you're having trouble sorting your data in Excel 2007. There could be a few reasons why the "Sort" function is disabled. Here are some possible solutions:

1. Make sure that your data is formatted as a table. Excel 2007 has a feature called "Table" that allows you to easily sort and filter your data. To format your data as a table, select the range of cells that you want to sort, then click on the "Insert" tab and choose "Table" from the "Tables" group. This should enable the "Sort" function.
2. Check if your worksheet is protected. If your worksheet is protected, you may not be able to sort your data. To check if your worksheet is protected, click on the "Review" tab and look for the "Protect Sheet" button in the "Changes" group. If it's highlighted, click on it to unprotect the sheet.
3. Make sure that you have selected the entire range of data that you want to sort. If you have only selected a portion of your data, the "Sort" function may be disabled. Click on the first cell in your data range, then hold down the Shift key and click on the last cell to select the entire range.

As for your frustration with the changes in Excel 2007, I understand how you feel. Microsoft made some significant changes to the user interface in this version, which can take some getting used to. However, once you become familiar with the new layout, you may find that it actually makes certain tasks easier and more efficient. If you have any specific questions or concerns about using Excel 2007, feel free to ask and I'll do my best to help.