Here is a quote from the same site for the upgrade options for that specific board.
Upgrading socket S1 (S1g4) motherboards
The good thing about Danube platform is that all "Champlain" processors were launched in relatively short period of time (less than a year), and all of them have the same core stepping, which means that most motherboards will support full line of S1g4 microprocessors. Although all "Champlain" CPUs are very likely to be supported by majority of motherboards, you still need to consider other factors, such as Thermal Design Power, that may limit your upgrade choices. Also, your upgrade options could be different depending on the type of applications, that you're running on your laptop:
If you're planning to run multi-threaded applications or many CPU-intensive processes at once then consider upgrading to any processor from Phenom II Quad-Core family. Be aware that these CPUs are slower in single- and dual-threaded applications than Turion II and dual- and triple-core Phenom IIs, therefore go with quad-core CPU only if you really need it.
If you need maximum performance in existing games, or single- and dual-threaded applications, then the best upgrade option is any one of Phenom II Dual-Core microprocessors. If finding dual-core Phenom II proves to be difficult, then the second upgrade option is one of Turion II CPUs, preferably the fastest ones from the "Supported processors" table above.
Phenom II Triple-Core CPUs have decent performance in single- and dual-threaded tasks, and good performance in multi-threaded apps. These are a good compromise between the Dual-Core and Quad-Core mobile CPUs.
Other upgrade considerations:
Be careful when upgrading to CPU with higher TDP. If you have weak fan/heatsink then you may end up with a system, that automatically shuts down during heavy workloads. Usually, upgrading from 25W to 35W CPU, or from 35W to 45W CPU should not present a problem. If you want to be on the safe side then choose upgrade processor with the same or lower TDP.
Finding the fastest processors from specific series (Phenom II Quad-Core or Dual-Core) could be difficult. As an alternative, look at slightly slower version from the same series - they could be easier to find and cheaper to buy. For example, Phenom II X940 is impossible to find at reasonable price, while X920 model is available on the site like eBay for less than $100.
The last, but not least: all notebook designs are different. Some laptops can be upgraded in minutes, while replacing a CPU on other laptops may literally take hours. If you don't have experience upgrading laptop processors then try to locate laptop disassembly instructions first, or do a quick check in online computer forums whether other people had problems upgrading the CPU on your notebook model or not.