Windows .exe Memory problem?

[MyNameIsZebs]

Hello,
I use Windows 7 32-bit, with a 32-bit Java. Since it is a 32-bit Java, I can only allocate 1GB maximum. Which is a problem (I think.) I can't play any of the modpack I would like to (Tech World 2, Horizon, and probably all the other packs), and I'm pretty sure there is a way to fix this.
Here's the error log I got, hopefully I can get some help from you guys.
http://pastebin.com/zEFJbk5E

 

[Marcel van Dongen]

Well... I am pretty sure there isn't... You can play the FTB Lite2 version on 32bits, and that's about it.
On the other hand, Your processor seems to be capable of running a 64bit OS, so you could consider 'upgrading' to Windows 7 64bit. But since the processor is already more than 7 years old, that may not be the best route.