did you purchase and register your copy of X2 with Corel - if yes then it may be possible to download again.
Go to your account on the Corel.com website - scroll down the page until you see "Your Order status & History" - if your order for X2 is not shown click on "see all orders" you should then be able to select the X2 order and one of the options given on the "order confirmation" page will be to download again.
If you did not register or have forgotten the details you used for that account then all may be lost.
Service pack two allows X2 to run on Windows 7
The downloads for Service packs 1 and 2 for X2 can be found here -
http://www.corel.com/corel/pages/index. ... id=1300014 - you need to install both.
I am wondering though whether it is all really worth it - having X2 on your computer will not qualify you for the upgrade price to X6 - Corel now only allow the last two versions as qualifying products, that is to get X6 reduced you must have X4 or X5 installed.
Personally I would cut the hassle and just purchase a copy of X6 to install on an upgraded system
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