Np!
And the SCU should be avaiable in tombraiderchronicles if I'm not mistaken. It's pretty easy to use. And here's a hint if you want the duals but don't want the power upgrades (having a powered up Lara throught the whole game can be a pain in some areas because of the jump lenght); after enabling the debug controls, press F3 a few times to get rid of the annoying stuff in the screen, then use esc to pause the game. Then press tab (or caps but I think it's tabs) to enable the 'debug menu'. Once you did just search the options for the 'all weapons' cheat and press enter. Bingo, now you have the duals!
Also be sure the AOD section for some good mods. There's a few to enhance the experience of the game and fix some bugs, discrepancies and annoyances.