help on choosing a motherboard for a idiot

my parallel port is messed up so im looking for a motherboard with a serial port and parallel port for my hp a630n here whats on there now. I know I need one with ddr because thats what i got in there any ideas thanks guys


Base processor
Intel Pentium4 520 (P) 2.8 GHz
800 MHz Front side bus
Socket 775 (Grantsdale)
Chipset
Intel 915G
Motherboard
ASUS name: PTGD1-LA
HP/Compaq name: Grouper-GL8E
Motherboard specifications
Memory
Component Attributes
Memory Installed 512 MB
Maximum allowed 4 GB (4 x 1GB) requires the replacement of the installed 256 MB DIMMs
Speed supported PC3200 MB/sec
Type 184 pin, DDR SDRAM
DIMM slots Four

 

http://www.newegg.com/Product/Product.aspx?Item=N82E16813135006
all i could find but it only has 2 ram slots

 

Yeah i seen the same thing but on my current motherboard i also have a vga where my lcd hooks up how would i connect to this one