The table needs to be started with a [table] tag.
Each row needs to be started with a [tr] tag.
Each cell needs to be started with a [td] tag and ended with a [/td] tag.
Close the row with a [/tr] tag.
close the table with a [/table] tag.
Remove all the returns....
The [tc=2][/tc] tag is a colspan cell will force a cell to span two columns and it MUST have the = and a number.
EG:[table][tr][td]R1C1[/td][td]R1C2[/td][td]R1C3[/td][/tr][tr][td]R2C1[/td][td]R2C2[/td][td]R2C3[/td][/tr][tr][td]R3C1[/td][td]R3C2[/td][td]R3C3[/td][/tr][tr][td]R4C1[/td][td]R4C2[/td][td]R4C3[/td][/tr][tr][tc=2]R5C1-2[/tc][td]R5C3[/td][/tr][/table] produces
R1C1 | R1C2 | R1C3 |
R2C1 | R2C2 | R2C3 |
R3C1 | R3C2 | R3C3 |
R4C1 | R4C2 | R4C3 |
R5C3 | | |
[tc=2]R5C1-2[/tc]